Search/Recent Changes
DBTropes
...it's like TV Tropes, but LINKED DATA!

Hollow World

 Hollow World
type
FeatureClass
 Hollow World
label
Hollow World
 Hollow World
page
HollowWorld
 Hollow World
comment
So, mainstream scientists today believe that the Earth under our feet has a lot of molten rock and metal filling it and have gathered a lot of pretty solid evidence for it. The only complication is that we've never been able to send a human down more than several miles to actually study it up close, largely because No One Could Survive That! Which is why since times that are Older Than Radio, early scientists, writers and more than a few crackpots have believed that there just might be something... or indeed, someone (say, Ultra Terrestrials)... down there, possibly powered by a suitably sized sun in the center.
The most known early example is Jules Verne's Journey to the Center of the Earth, although he likely drew from theories of his time. When science started to switch over to the modern view of Earth's composition the idea of the hollow earth became a Discredited Trope, but later generations of Speculative Fiction writers took up the concept and revitalized it, making it a staple of pulpy Two-Fisted Tales. Sci-Fi works bring us hollow world concepts such as the Dyson Sphere, which is a Hollow World taken to a solar system scale, and other variations of artificially constructed worlds.
Note that its usual configuration, with people walking about on the inner surface, wouldn't work; a hollow sphere has no net gravitational pull on any object inside it. Although some theorists, such as John Symmes, claim that this actually could work due to the centrifugal force caused by the planet's rotation. However, not only would this only work at the equator, it would still have to be very low, otherwise the planet itself would break apart.note The centrifugal acceleration at Earth's equator is only 0.003g.
A related belief is that of "Concave Hollow Earth": that Earth is actually a hollow bubble inside an infinite mass of rock.
A sub-trope of World Shapes and, in more modern works, an example of All Theories Are True. Compare Beneath the Earth, Dyson Sphere, Planetary Core Manipulation. When the inhabitants don't know they're in a hollow world, it may become a City in a Bottle or a Lost World.
May contain Living Dinosaurs and/or Lizard Folk, The Morlocks, Fungus Humongous, the occasional Underground City, and at least one Crystal Landscape of unspeakable beauty.
Not to be confused with Hollow Earth the series.

Examples
 Hollow World
fetched
2023-10-21T23:00:13Z
 Hollow World
parsed
2023-10-21T23:00:13Z
 Hollow World
processingComment
Dropped link to BigBad: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to ClockPunk: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to FlatWorld: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to Hell: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to PrimordialChaos: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to RealLife: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to StarWarsThePhantomMenace: Not an Item - UNKNOWN
 Hollow World
processingComment
Dropped link to SufficientlyAdvancedAliens: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to TrailersAlwaysSpoil: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to UnrealisticBlackHole: Not an Item - FEATURE
 Hollow World
processingComment
Dropped link to WorldShapes: Not an Item - FEATURE
 Hollow World
processingUnknown
StarWarsThePhantomMenace
 Hollow World
isPartOf
DBTropes
 Hollow World / int_11c6567a
type
Hollow World
 Hollow World / int_11c6567a
comment
The BookWorld in the Thursday Next series eventually reboots and turns into one of these in One Of Our Thursdays Is Missing. Used to be the various books were essentially pocket worlds floating in space independently of each other, only connected by a library acting as a dimensional nexus of sorts, but they now occupy the surface of a hollow world, with the various subdivisions of literature — Fiction, Poetry, Mythology, Non-Ficition, etcetera — each occupying a single continent.
 Hollow World / int_11c6567a
featureApplicability
1.0
 Hollow World / int_11c6567a
featureConfidence
1.0
 Thursday Next
hasFeature
Hollow World / int_11c6567a
 Hollow World / int_1362919f
type
Hollow World
 Hollow World / int_1362919f
comment
Against the Day seems to have this. It's unclear.
 Hollow World / int_1362919f
featureApplicability
1.0
 Hollow World / int_1362919f
featureConfidence
1.0
 Against the Day
hasFeature
Hollow World / int_1362919f
 Hollow World / int_14494034
type
Hollow World
 Hollow World / int_14494034
comment
Abraxas (Hrodvitnon): Titans can use tunnels cutting through the Earth's mantle to shorten global travel time, like Godzilla did in Godzilla: King of the Monsters (2019); but later chapters also hint that the real Hollow World ecosystem is located at the planet's core (here referred to by Ghidorah as the Realm Below, and mainly based off the Hollow World's portrayal in Godzilla vs. Kong), and the Realm Below is largely unexplored or untouched even by the Titans.
 Hollow World / int_14494034
featureApplicability
1.0
 Hollow World / int_14494034
featureConfidence
1.0
 Abraxas (Hrodvitnon) (Fanfic)
hasFeature
Hollow World / int_14494034
 Hollow World / int_15c6ea11
type
Hollow World
 Hollow World / int_15c6ea11
comment
Wonder Woman (1942): Queen Clea's Venturia and Queen Eeras' Aurania are both said to be Atlantean outposts but rather than underwater in their first appearances they are underneath the ocean in a dry enormous cavern.
 Hollow World / int_15c6ea11
featureApplicability
1.0
 Hollow World / int_15c6ea11
featureConfidence
1.0
 Wonder Woman (1942) (Comic Book)
hasFeature
Hollow World / int_15c6ea11
 Hollow World / int_164f12e6
type
Hollow World
 Hollow World / int_164f12e6
comment
The Spin-Dig Galaxy level from Super Mario Galaxy 2 appears to be located inside one of these.
 Hollow World / int_164f12e6
featureApplicability
1.0
 Hollow World / int_164f12e6
featureConfidence
1.0
 Super Mario Galaxy 2 (Video Game)
hasFeature
Hollow World / int_164f12e6
 Hollow World / int_184dc16f
type
Hollow World
 Hollow World / int_184dc16f
comment
In The Salvation War, Heaven and Hell are both Hollow Worlds. This is partly due to the linguistic convention of saying that one is "on" earth but "in" hell or heaven. They have Alien Geometries in other ways as well; traveling in what appears to be a straight line on them results in a curved path.
 Hollow World / int_184dc16f
featureApplicability
1.0
 Hollow World / int_184dc16f
featureConfidence
1.0
 The Salvation War
hasFeature
Hollow World / int_184dc16f
 Hollow World / int_1a7918e3
type
Hollow World
 Hollow World / int_1a7918e3
comment
Terranigma has this at the beginning, and later the protagonist drops through a hole to find himself on the surface of Earth.
 Hollow World / int_1a7918e3
featureApplicability
1.0
 Hollow World / int_1a7918e3
featureConfidence
1.0
 Terranigma (Video Game)
hasFeature
Hollow World / int_1a7918e3
 Hollow World / int_1aec9ec4
type
Hollow World
 Hollow World / int_1aec9ec4
comment
Septerra Core takes place on seven massive continents or "Shells" whose orbit and level are controlled by a central core with mythical wish granting powers.
 Hollow World / int_1aec9ec4
featureApplicability
1.0
 Hollow World / int_1aec9ec4
featureConfidence
1.0
 Septerra Core (Video Game)
hasFeature
Hollow World / int_1aec9ec4
 Hollow World / int_1bd4c2fc
type
Hollow World
 Hollow World / int_1bd4c2fc
comment
There's a B.P.R.D. story called "Hollow Earth". It features mutant cavemen and what looks like Nazi submarines. However, it's not quite a traditional version — it's more like there is a network of subterranean caves in various places around the world where said mutant cavemen (really former servitors of the ancient Hyperboreans) live, and most of the world seems to be largely as we know it aside from that. Agartha and similar legends from Theosophy and the Thule Society occasionally crop up in the broader Hellboy universe but the truth is generally rather off from what the Theosophists thought.
The spinoff comic Witchfinder has a malevolent spirit explicitly exploiting a group's beliefs in the Hollow Earth to feed off their collective life forces (and then their blood).
The hollow Earth caves turn out to be more important as the different Hellboy series progress. In the end they turn out to be the place humanity was destined to inhabit when the surface of the planet is destroyed.
The story Frankenstein Underground has Frankenstein's Monster getting stranded in the Hollow Earth, where he encounters the ruins of an attempt to colonize it by a group of Theosophist-style mystics, who were preparing for the apocalyptic event mentioned above. Naturally, the place is crawling with really cool monsters. He ends up deciding to stay down there, where he can finally be left alone and be at peace with nature.
 Hollow World / int_1bd4c2fc
featureApplicability
1.0
 Hollow World / int_1bd4c2fc
featureConfidence
1.0
 B.P.R.D. (Comic Book)
hasFeature
Hollow World / int_1bd4c2fc
 Hollow World / int_1c552432
type
Hollow World
 Hollow World / int_1c552432
comment
In Inside Job (2021), every conspiracy theory is true except Flat Earth, which was a bet by employees of the Evil, Inc. running the world about the dumbest thing they could get people to believe. Instead, the Earth is hollow with a race of sapient hallucinogenic mushrooms living inside of it. One such mushroom, Magic Myc, is one of the main characters.
 Hollow World / int_1c552432
featureApplicability
1.0
 Hollow World / int_1c552432
featureConfidence
1.0
 Inside Job (2021)
hasFeature
Hollow World / int_1c552432
 Hollow World / int_257a9881
type
Hollow World
 Hollow World / int_257a9881
comment
Choose Your Own Adventure:
The Underground Kingdom had a star in the middle of the earth and an advanced civilization living inside of the crust.
Likewise in Through the Black Hole, in which the planets in the black hole appear to be spherical and smooth (and repel all other objects), but can be burrowed into with some difficultly to locate the lush wildlife and Sufficiently Advanced Aliens on the inside.
 Hollow World / int_257a9881
featureApplicability
1.0
 Hollow World / int_257a9881
featureConfidence
1.0
 Choose Your Own Adventure
hasFeature
Hollow World / int_257a9881
 Hollow World / int_261c8d3f
type
Hollow World
 Hollow World / int_261c8d3f
comment
The Simpsons: In "Bart vs. Australia", the Hindu god Vishnu is seen in the center of a hollow Earth, apparently controlling the universe from there.
 Hollow World / int_261c8d3f
featureApplicability
1.0
 Hollow World / int_261c8d3f
featureConfidence
1.0
 The Simpsons
hasFeature
Hollow World / int_261c8d3f
 Hollow World / int_293ae150
type
Hollow World
 Hollow World / int_293ae150
comment
In one issue of the Gold Key Underdog comic book of the 1970s, Underdog met many strange creatures, including a rock 'n' roll band, as he followed Simon Barsinister's drilling machine through the earth.
 Hollow World / int_293ae150
featureApplicability
1.0
 Hollow World / int_293ae150
featureConfidence
1.0
 Underdog
hasFeature
Hollow World / int_293ae150
 Hollow World / int_2a26b258
type
Hollow World
 Hollow World / int_2a26b258
comment
Star Wars: Honor Among Thieves: The planet Seymarti has had its mantle completely emptied out; the crust is held up away from the core by incredibly powerful force fields left by the K'kybak. This is implied to have been necessary to generate the K'kybak's anti-hyperspace field. To keep said field out of the Empire's hands, Han disrupts the force fields and implodes the planet.
 Hollow World / int_2a26b258
featureApplicability
1.0
 Hollow World / int_2a26b258
featureConfidence
1.0
 Star Wars: Honor Among Thieves
hasFeature
Hollow World / int_2a26b258
 Hollow World / int_2bd39fd7
type
Hollow World
 Hollow World / int_2bd39fd7
comment
Hollow Earth Expedition is all about this, using the fluidity of the pulp genre to meld the hollow earth with Thule, Atlantis, and prehistoric times, and any sort of lost civilization, and the whole thing is discovered on the cusp of World War II. Hey, how else are you going to feed Nazis to dinosaurs?
 Hollow World / int_2bd39fd7
featureApplicability
1.0
 Hollow World / int_2bd39fd7
featureConfidence
1.0
 Hollow Earth Expedition (Tabletop Game)
hasFeature
Hollow World / int_2bd39fd7
 Hollow World / int_39fe00f1
type
Hollow World
 Hollow World / int_39fe00f1
comment
The Descent DLC for Dragon Age: Inquisition reveals that Thedas has at the very least shades of this. The DLC's plot leads the Inquisitor and their party far, far below the Deep Roads, which are generally considered the deepest explored reaches of the setting, into a fantastic underground world of gigantic caverns full of bioluminescent life and even a lost ocean. It's also home to an entire lost clan of creepy dwarves wielding insanely advanced technology, and the Titans, absolutely humungous lifeforms whose mere movements trigger earthquakes on the surface, and whose blood is lyrium, the substance all surface magic is dependent on. The Inquisitor only explores the uppermost reaches of a Titan, implying the sub-Deep Roads cave systems descend even deeper into the planet, possible to the very core.
 Hollow World / int_39fe00f1
featureApplicability
1.0
 Hollow World / int_39fe00f1
featureConfidence
1.0
 DragonAgeInquisition
hasFeature
Hollow World / int_39fe00f1
 Hollow World / int_3a68a087
type
Hollow World
 Hollow World / int_3a68a087
comment
The Fushigiboshi in Twin Princess of Wonder Planet, which gives it its name (which translates to "Wonder Planet").
 Hollow World / int_3a68a087
featureApplicability
1.0
 Hollow World / int_3a68a087
featureConfidence
1.0
 Twin Princess of Wonder Planet
hasFeature
Hollow World / int_3a68a087
 Hollow World / int_3f3e5c06
type
Hollow World
 Hollow World / int_3f3e5c06
comment
In The Time Ships, the time traveler returns to the future once again, but finds it changed. The Morlocks are now "good" in this future, and are also incredibly advanced, having engineered a hollow sphere around the Sun slightly inside Earth's orbit. Morlocks live on the outside of this hollow sphere in the dark, while the Eloi live on the sunlit inside of it.
 Hollow World / int_3f3e5c06
featureApplicability
1.0
 Hollow World / int_3f3e5c06
featureConfidence
1.0
 The Time Ships
hasFeature
Hollow World / int_3f3e5c06
 Hollow World / int_4edff9aa
type
Hollow World
 Hollow World / int_4edff9aa
comment
Star Fox: Macbeth from the original game is stated to be a hollow planet, but in truth there is a core, albeit smaller than the crust that surrounds it. This makes a huge series of caverns that runs through the entire planet. Andross had plans to turn Macbeth into a massive base. The actual stage even takes place with the Arwings flying around inside the planet.
 Hollow World / int_4edff9aa
featureApplicability
1.0
 Hollow World / int_4edff9aa
featureConfidence
1.0
 Star Fox (Video Game)
hasFeature
Hollow World / int_4edff9aa
 Hollow World / int_503d5009
type
Hollow World
 Hollow World / int_503d5009
comment
Mentioned in Ayakashi Triangle: Lu does not believe in the supernatural (which is real in this setting), but she does believe UFOs must somehow be connected to the hollow Earth city of Aruzaru* A specifically-Japanese version of hollow Earth theory that seems to be a corruption of "Agartha"..
 Hollow World / int_503d5009
featureApplicability
1.0
 Hollow World / int_503d5009
featureConfidence
1.0
 Ayakashi Triangle (Manga)
hasFeature
Hollow World / int_503d5009
 Hollow World / int_50bcf7a6
type
Hollow World
 Hollow World / int_50bcf7a6
comment
In Homestuck, the Battlefield has a very thick crust with a hollow center housing THE TUMOR (before it was removed) in its center.
 Hollow World / int_50bcf7a6
featureApplicability
1.0
 Hollow World / int_50bcf7a6
featureConfidence
1.0
 Homestuck (Webcomic)
hasFeature
Hollow World / int_50bcf7a6
 Hollow World / int_58feb3ca
type
Hollow World
 Hollow World / int_58feb3ca
comment
This is used in Maoyu. The "no gravitational pull" aspect is got around by having the sun be a repulsing force instead, pushing things away from it toward the ground.
 Hollow World / int_58feb3ca
featureApplicability
1.0
 Hollow World / int_58feb3ca
featureConfidence
1.0
 Maoyu
hasFeature
Hollow World / int_58feb3ca
 Hollow World / int_5c897f4a
type
Hollow World
 Hollow World / int_5c897f4a
comment
Schlock Mercenary has the Buuthandi, built by the F'sherl-Ganni. Due to math they're rather more like spherical solar sails counterbalanced with living habitats (drastically reducing the living space compared to a standard Dyson Sphere — only a few hundred thousand times Earth rather than millions), but allow them to tame an entire star as a source of energy and mass.
 Hollow World / int_5c897f4a
featureApplicability
1.0
 Hollow World / int_5c897f4a
featureConfidence
1.0
 Schlock Mercenary (Webcomic)
hasFeature
Hollow World / int_5c897f4a
 Hollow World / int_62570927
type
Hollow World
 Hollow World / int_62570927
comment
In the Marvel Universe, Saturn's moon Titan is this: barren on the outside, fully inhabited on the inside.
 Hollow World / int_62570927
featureApplicability
1.0
 Hollow World / int_62570927
featureConfidence
1.0
 Marvel Universe (Franchise)
hasFeature
Hollow World / int_62570927
 Hollow World / int_68237790
type
Hollow World
 Hollow World / int_68237790
comment
Pathfinder:
Deep Tolguth is a vault in the Darklands, complete with otherwise-extinct animals. It's more like a country-sized mini-world than an actual hollow planet, though; an ancient terrarium made by Sufficiently Advanced Elementals.
The Outer Planes are arranged in a cosmic take on this trope known as the Outer Sphere. They are laid out on the inner surface of an unimaginably large sphere, with the Inner Planes — the material world, the ethereal plane and the elemental planes — in its precise center. The surface of the Outer Sphere consists primarily of the Maelstrom, a vast expanse of ever-shifting chaos and unshaped matter, with the other Outer Planes as isolated "continents" surrounded by the Maelstrom's "ocean". Heading deep enough within the Maelstrom or underneath one of the other planes eventually leads to the Abyss, also called the Outer Rifts, a seemingly infinite system of abysses and worlds-sized caverns extending in all directions.
 Hollow World / int_68237790
featureApplicability
1.0
 Hollow World / int_68237790
featureConfidence
1.0
 Pathfinder (Tabletop Game)
hasFeature
Hollow World / int_68237790
 Hollow World / int_68c8e9ad
type
Hollow World
 Hollow World / int_68c8e9ad
comment
Super Robot Wars: The world of La Gias (only visited in the Gaiden Game Lord Of Elemental, but referenced throughout the series) is like this. Its specifically in the center of the Earth, but its more of a magical dimension.
 Hollow World / int_68c8e9ad
featureApplicability
1.0
 Hollow World / int_68c8e9ad
featureConfidence
1.0
 Super Robot Wars (Video Game)
hasFeature
Hollow World / int_68c8e9ad
 Hollow World / int_6ac55ec7
type
Hollow World
 Hollow World / int_6ac55ec7
comment
Dungeons & Dragons:
The Hollow World is a game setting inside another game setting, being located inside the planet on which Mystara is set, reachable by huge holes at the planetary poles. In-universe, it's used by Immortals (the gods of the setting) as a sort of ark for creatures and cultures that would have gone extinct in the surface world, including dinosaurs, Kogolor dwarves (the surface-dwelling pastoral ancestors of the more stereotypical main setting dwarves), beastmen (the bestial ancestors of evil humanoids like orcs, goblins and ogres) and advanced Lizard Folk, with a few floating continents for flavor.
Spelljammer got Herdspace described in The Maelstrom's Eye by Roger E. Moore — a crystal sphere with an internal surface (the size of a "small" solar system) covered with inhabitable landscape, much like a naturally-occurring Dyson Sphere.
The World Builder's Guidebook, a supplement for 2nd Edition D&D, discussed variant World Shapes, including hollow worlds. Notably, it points out that the same blank globe-maps it provides for Earth-like spherical worlds are also perfectly usable for a hollow sphere.
 Hollow World / int_6ac55ec7
featureApplicability
1.0
 Hollow World / int_6ac55ec7
featureConfidence
1.0
 Dungeons & Dragons (Tabletop Game)
hasFeature
Hollow World / int_6ac55ec7
 Hollow World / int_6b685721
type
Hollow World
 Hollow World / int_6b685721
comment
The movie The Mole People featured a team of scientists going down, down beneath the surface of the Earth to find another society of humans, along with the eponymous Mole People.
 Hollow World / int_6b685721
featureApplicability
1.0
 Hollow World / int_6b685721
featureConfidence
1.0
 The Mole People
hasFeature
Hollow World / int_6b685721
 Hollow World / int_6c1234ed
type
Hollow World
 Hollow World / int_6c1234ed
comment
Dwarf Fortress: The game world may or may not be spherical, but it's hollow alright, as your dwarves may discover the hard way. Specifically, it has a sort of "Swiss cheese" layering of an unmineable rock called slade which is covered in semi-molten rock and adamantine, depending on where.
 Hollow World / int_6c1234ed
featureApplicability
1.0
 Hollow World / int_6c1234ed
featureConfidence
1.0
 Dwarf Fortress (Video Game)
hasFeature
Hollow World / int_6c1234ed
 Hollow World / int_6eb75132
type
Hollow World
 Hollow World / int_6eb75132
comment
The White Darkness. A girl is dragged along by her eccentric uncle to find the entrance to the hollow earth in Antarctica. He's wrong, and quite insane.
 Hollow World / int_6eb75132
featureApplicability
1.0
 Hollow World / int_6eb75132
featureConfidence
1.0
 TheWhiteDarkness
hasFeature
Hollow World / int_6eb75132
 Hollow World / int_73549409
type
Hollow World
 Hollow World / int_73549409
comment
Storm Hawks: It's revealed in one episode that there are underwater cave systems that extend all the way down to the core of Atmos, and beyond that to the mysterious Far Side on the other side of the planet.
 Hollow World / int_73549409
featureApplicability
1.0
 Hollow World / int_73549409
featureConfidence
1.0
 Storm Hawks
hasFeature
Hollow World / int_73549409
 Hollow World / int_7385bc4d
type
Hollow World
 Hollow World / int_7385bc4d
comment
Doraemon
One comic issue centers around Nobita and Doraemon's discovery of a barren, hollow realm in the center of the Earth thanks to a gadget which warps any myth into reality in the eyes of its users. As you would expect from an adventurous kid and his multipurpose robot, the duo proceed to populate the space with life, including little clay people that rapidly form a fairly advanced civilization and eventually venerate the duo like gods.
Doraemon Nobitas Diary Of The Creation Of The World have Nobita creating a brand new world of his own using a Universe Creation Kit, but after realizing his world doesn't have mammals in it, only bugs, asks for Doraemon to speed up its evolution process. This leads to the creation of humans' ancestors, with bugs on the other hand being forced underground and creating their own civilization, a Hollow underground city populated by sentient, human-sized insects.
Doraemon: Nobita's New Dinosaur have an underground dinosaur sanctuary accessible through a cavern entrance, leading to a lost world populated by multiple different types of dinosaurs, including the last pockets of Nobisauruses the gang have spent the entire film searching for. This hidden sanctuary is eventually revealed as the result of a Chekhov's Gun from earlier - when Doraemon and friends accidentally arrived in the Jurassic period instead of the Cretaceous era, and Nobita lose the Breeding Diorama gadget along the way, turns out the gadget continues expanding on it's own and when they reach the correct time, said gadget already became a hidden world of various dinosaurs.
 Hollow World / int_7385bc4d
featureApplicability
1.0
 Hollow World / int_7385bc4d
featureConfidence
1.0
 Doraemon (Manga)
hasFeature
Hollow World / int_7385bc4d
 Hollow World / int_755b343f
type
Hollow World
 Hollow World / int_755b343f
comment
In Halo, Forerunner shield worlds are this combined with Dyson Sphere. They were designed to shelter their inhabitants from the Flood.
 Hollow World / int_755b343f
featureApplicability
1.0
 Hollow World / int_755b343f
featureConfidence
1.0
 Halo (Franchise)
hasFeature
Hollow World / int_755b343f
 Hollow World / int_759baac7
type
Hollow World
 Hollow World / int_759baac7
comment
Endride is set in Endora, a fantasy kingdom inside a hollow Earth. There is a large green crystal floating in the center that serves as their sun. And somehow there is an open green sky there.
 Hollow World / int_759baac7
featureApplicability
1.0
 Hollow World / int_759baac7
featureConfidence
1.0
 Endride
hasFeature
Hollow World / int_759baac7
 Hollow World / int_77711848
type
Hollow World
 Hollow World / int_77711848
comment
Journey to the Center of the Earth implies that there is a second sun at the core of our own planet, meaning we live on the outside of such a sphere. At the time, before the discovery of radioactive elements, this was one of several speculated explanations for the Earth's internal heat.
 Hollow World / int_77711848
featureApplicability
1.0
 Hollow World / int_77711848
featureConfidence
1.0
 Journey to the Center of the Earth
hasFeature
Hollow World / int_77711848
 Hollow World / int_7cea4fb2
type
Hollow World
 Hollow World / int_7cea4fb2
comment
Confirmed in Godzilla: King of the Monsters (2019) when Godzilla can use the underwater tunnels (which have very high-speed currents running through them) to pass from one ocean to another in record time without those pesky continents getting in the way. One character explains it and references Brooks' theory. We also visit Godzilla's lair in the Underwater Ruins of an ancient Godzilla-worshipping civilization, deep within those tunnels. How it got there, and who those people were, remains a mystery.
 Hollow World / int_7cea4fb2
featureApplicability
1.0
 Hollow World / int_7cea4fb2
featureConfidence
1.0
 Godzilla: King of the Monsters (2019)
hasFeature
Hollow World / int_7cea4fb2
 Hollow World / int_7fcbd3e
type
Hollow World
 Hollow World / int_7fcbd3e
comment
The Hollow World is a game setting inside another game setting, being located inside the planet on which Mystara is set, reachable by huge holes at the planetary poles. In-universe, it's used by Immortals (the gods of the setting) as a sort of ark for creatures and cultures that would have gone extinct in the surface world, including dinosaurs, Kogolor dwarves (the surface-dwelling pastoral ancestors of the more stereotypical main setting dwarves), beastmen (the bestial ancestors of evil humanoids like orcs, goblins and ogres) and advanced Lizard Folk, with a few floating continents for flavor.
 Hollow World / int_7fcbd3e
featureApplicability
1.0
 Hollow World / int_7fcbd3e
featureConfidence
1.0
 Mystara (Tabletop Game)
hasFeature
Hollow World / int_7fcbd3e
 Hollow World / int_81341360
type
Hollow World
 Hollow World / int_81341360
comment
In the Ice Age film series there is an underworld which dinosaurs still roam, first seen in Ice Age: Dawn of the Dinosaurs.
 Hollow World / int_81341360
featureApplicability
1.0
 Hollow World / int_81341360
featureConfidence
1.0
 Ice Age
hasFeature
Hollow World / int_81341360
 Hollow World / int_83b96620
type
Hollow World
 Hollow World / int_83b96620
comment
The setting for most of Children Who Chase Lost Voices is Agartha, a massive underground world with a completely open sky. Any physical or geological impossibilities with this can seemingly be explained by the fact that God lives here.
 Hollow World / int_83b96620
featureApplicability
1.0
 Hollow World / int_83b96620
featureConfidence
1.0
 Children Who Chase Lost Voices
hasFeature
Hollow World / int_83b96620
 Hollow World / int_856ca68d
type
Hollow World
 Hollow World / int_856ca68d
comment
Foucault's Pendulum pokes fun at this trope, together with many others commonly believed by conspiracy theorists.
 Hollow World / int_856ca68d
featureApplicability
1.0
 Hollow World / int_856ca68d
featureConfidence
1.0
 Foucault's Pendulum
hasFeature
Hollow World / int_856ca68d
 Hollow World / int_86814cd0
type
Hollow World
 Hollow World / int_86814cd0
comment
Final Fantasy IV. It has a unique configuration in that, instead of two habitable surfaces opposed to each other, the Underworld IS the basic, solid planetary sphere, while the Overworld encases it. As proof, the Tower of Bab-Il rises from the Underworld and continues upwards through the Overworld. The Underworld is also considerably smaller, and, being located between the solid sphere and its shell, it lacks a Sun. The magma flowing through it is more than bright enough to do the job, though.
 Hollow World / int_86814cd0
featureApplicability
1.0
 Hollow World / int_86814cd0
featureConfidence
1.0
 Final Fantasy IV (Video Game)
hasFeature
Hollow World / int_86814cd0
 Hollow World / int_86814cd2
type
Hollow World
 Hollow World / int_86814cd2
comment
Final Fantasy IX: Gaia is revealed to be this, with Terra being the inside world. Originally, Gaia and Terra were each normal "life exists on the surface" planets, but Terra's incomplete merging with Gaia resulted in it getting tucked inside Gaia's core, with the area you visit near the climax being on the flip side of Gaia's crust.
 Hollow World / int_86814cd2
featureApplicability
1.0
 Hollow World / int_86814cd2
featureConfidence
1.0
 Final Fantasy IX (Video Game)
hasFeature
Hollow World / int_86814cd2
 Hollow World / int_887a1b58
type
Hollow World
 Hollow World / int_887a1b58
comment
Symzonia: A Voyage of Discovery by "Captain Adam Seaborn" is a 1820 novel which espouses ideas of John Cleves Symmes, Jr. and one of the earliest literary examples. Its other claim to fame is that was among the sources which inspired short story MS. Found in a Bottle and novel The Narrative of Arthur Gordon Pym of Nantucket by Edgar Allan Poe.
 Hollow World / int_887a1b58
featureApplicability
1.0
 Hollow World / int_887a1b58
featureConfidence
1.0
 The Narrative of Arthur Gordon Pym of Nantucket
hasFeature
Hollow World / int_887a1b58
 Hollow World / int_8a1c34ad
type
Hollow World
 Hollow World / int_8a1c34ad
comment
Axe Cop features a civilization of people living within the Moon rather than on its surface. The Moon Ninjas come from here.
 Hollow World / int_8a1c34ad
featureApplicability
1.0
 Hollow World / int_8a1c34ad
featureConfidence
1.0
 Axe Cop (Webcomic)
hasFeature
Hollow World / int_8a1c34ad
 Hollow World / int_8a339030
type
Hollow World
 Hollow World / int_8a339030
comment
The Indiana Jones novel Indiana Jones and the Hollow Earth is about this. More specifically, Indy discovers Ultima Thule (see "Real Life" examples below).
 Hollow World / int_8a339030
featureApplicability
1.0
 Hollow World / int_8a339030
featureConfidence
1.0
 Indiana Jones (Franchise)
hasFeature
Hollow World / int_8a339030
 Hollow World / int_8aaeda7e
type
Hollow World
 Hollow World / int_8aaeda7e
comment
MonsterVerse:
The theory is referenced in Kong: Skull Island by Houston Brooks as a possibility to the origins of kaiju. Sure enough, Skull Island is located above some kind of fissure from which monsters like Skullcrawlers emerge. They may not be implying the whole planet is hollow, only that there is a large enough space underneath Skull Island for a whole ecosystem of ancient monsters to survive in.
Confirmed in Godzilla: King of the Monsters (2019) when Godzilla can use the underwater tunnels (which have very high-speed currents running through them) to pass from one ocean to another in record time without those pesky continents getting in the way. One character explains it and references Brooks' theory. We also visit Godzilla's lair in the Underwater Ruins of an ancient Godzilla-worshipping civilization, deep within those tunnels. How it got there, and who those people were, remains a mystery.
Godzilla vs. Kong confirms the existence of terrestrial Hollow Earth ecosystems as well, a massive jungle Lost World over which Kong reigns at the end of the movie. It also reveals that these zones are inaccessible to non-Titan surface dwellers by an inverted gravity barrier that requires specialized vehicles to cross.
 Hollow World / int_8aaeda7e
featureApplicability
1.0
 Hollow World / int_8aaeda7e
featureConfidence
1.0
 MonsterVerse (Franchise)
hasFeature
Hollow World / int_8aaeda7e
 Hollow World / int_8ae371b9
type
Hollow World
 Hollow World / int_8ae371b9
comment
The eponymous Slug Terra (incidentally, made by same studio behind Storm Hawks) is a vast, lush, and thriving hollow earth over 100 miles beneath the surface, populated by a variety of intelligent slug species with unique hidden powers, as well as other non-human races.
 Hollow World / int_8ae371b9
featureApplicability
1.0
 Hollow World / int_8ae371b9
featureConfidence
1.0
 Slugterra
hasFeature
Hollow World / int_8ae371b9
 Hollow World / int_8d4e80a9
type
Hollow World
 Hollow World / int_8d4e80a9
comment
In The World and Thorinn, there are many worlds within the Earth with the lower ones having less of a pull of gravity due to almost as much material being overhead as underfoot.
 Hollow World / int_8d4e80a9
featureApplicability
1.0
 Hollow World / int_8d4e80a9
featureConfidence
1.0
 The World And Thorinn
hasFeature
Hollow World / int_8d4e80a9
 Hollow World / int_8d8157e0
type
Hollow World
 Hollow World / int_8d8157e0
comment
Lexx's planet Fire has an inner surface with inexplicable bright daylight and Earth-normal gravity. Given its supernatural nature, one can only shrug.
 Hollow World / int_8d8157e0
featureApplicability
1.0
 Hollow World / int_8d8157e0
featureConfidence
1.0
 Lexx
hasFeature
Hollow World / int_8d8157e0
 Hollow World / int_8f497f51
type
Hollow World
 Hollow World / int_8f497f51
comment
Atomic Robo makes it very clear that the Earth is not hollow, because that would be scientifically impossible. However, there is an extensive, undetectable planet-wide cave network populated by an alien silicon-based ecosystem, created when debris from Theia was captured by Earth's gravity and sank into the crust billions of years ago. note An immortal magma worm was involved at some point. We don't really know how.
 Hollow World / int_8f497f51
featureApplicability
1.0
 Hollow World / int_8f497f51
featureConfidence
1.0
 Atomic Robo
hasFeature
Hollow World / int_8f497f51
 Hollow World / int_9146370
type
Hollow World
 Hollow World / int_9146370
comment
The Earth is hollow in Super Dinosaur and houses a smaller one: Inner-Earth, which is inhabited by dinosaurs. And the Reptiloids.
 Hollow World / int_9146370
featureApplicability
1.0
 Hollow World / int_9146370
featureConfidence
1.0
 Super Dinosaur (Comic Book)
hasFeature
Hollow World / int_9146370
 Hollow World / int_928a8b2b
type
Hollow World
 Hollow World / int_928a8b2b
comment
The Death Gate Cycle.
The second book, Elven Star, features the world of elemental Fire as one of these, where all the stars in the sky are the equivalent of gigantic lighthouse beacons.
The world of elemental Water is another example, with the slight difference that the islands are floating in air-bubbles in a vast sea filling its volume, meaning that people travel around in submarines instead of airships.
Even the world of elemental Air apparently is this according to the map, even though the "walls" presumably consist of some kind of force fields rather than solid matter.
The final book implies that all the worlds exist in what used to be our solar system, and can be reached through mechanical rockets even after the Death Gate is closed — after you get through the planets' artificial crust, in any case.
 Hollow World / int_928a8b2b
featureApplicability
1.0
 Hollow World / int_928a8b2b
featureConfidence
1.0
 The Death Gate Cycle
hasFeature
Hollow World / int_928a8b2b
 Hollow World / int_959e6c9
type
Hollow World
 Hollow World / int_959e6c9
comment
Dragon Quest IV: The final area. Also used in Dragon Quest III where one of the big plot twists is The Reveal that the first two games took place inside an alternate Earth.
 Hollow World / int_959e6c9
featureApplicability
1.0
 Hollow World / int_959e6c9
featureConfidence
1.0
 Dragon Quest IV (Video Game)
hasFeature
Hollow World / int_959e6c9
 Hollow World / int_996edf24
type
Hollow World
 Hollow World / int_996edf24
comment
Wonder Woman:
Queen Atomia's Atom/Subatomic World looks like a sphere but every action there takes place inside and "underground".
Wonder Woman (1942): Queen Clea's Venturia and Queen Eeras' Aurania are both said to be Atlantean outposts but rather than underwater in their first appearances they are underneath the ocean in a dry enormous cavern.
Moltonia is a "world inside a world" with a blue sun which once abducted the Holliday Girls.
 Hollow World / int_996edf24
featureApplicability
1.0
 Hollow World / int_996edf24
featureConfidence
1.0
 Wonder Woman (Franchise)
hasFeature
Hollow World / int_996edf24
 Hollow World / int_9be1af9a
type
Hollow World
 Hollow World / int_9be1af9a
comment
In Society of Super-Heroes: Conquerors of the Counter-World #1, Immortal Man mentions in passing that he just walked back from inside the Earth.
 Hollow World / int_9be1af9a
featureApplicability
1.0
 Hollow World / int_9be1af9a
featureConfidence
1.0
 The Multiversity (Comic Book)
hasFeature
Hollow World / int_9be1af9a
 Hollow World / int_9cc8c624
type
Hollow World
 Hollow World / int_9cc8c624
comment
Valérian: The inhabitants of the "starless country" live inside a hollow planet. The core is their sun. And yes, somewhere a physicist is crying.
 Hollow World / int_9cc8c624
featureApplicability
1.0
 Hollow World / int_9cc8c624
featureConfidence
1.0
 Valérian (Comic Book)
hasFeature
Hollow World / int_9cc8c624
 Hollow World / int_a03824e8
type
Hollow World
 Hollow World / int_a03824e8
comment
In The DCU, Skartaris was originally inside a Hollow Earth. A later Retcon changed it into an alternate dimension that was accessed through gates at the Earth's poles.
 Hollow World / int_a03824e8
featureApplicability
1.0
 Hollow World / int_a03824e8
featureConfidence
1.0
 The DCU (Franchise)
hasFeature
Hollow World / int_a03824e8
 Hollow World / int_a27e0900
type
Hollow World
 Hollow World / int_a27e0900
comment
In Prisoners of Power, the inhabitants of the planet Saraksh are convinced that they live on the inner surface of a spherical cavity, due to the unusual optical properties of its atmosphere (the horizon looks like it is above the observer).
 Hollow World / int_a27e0900
featureApplicability
1.0
 Hollow World / int_a27e0900
featureConfidence
1.0
 Prisoners of Power
hasFeature
Hollow World / int_a27e0900
 Hollow World / int_a2a386c9
type
Hollow World
 Hollow World / int_a2a386c9
comment
Orion's Arm has several different types.
Freespheres are small and light enough that they lack gravity, being essentially air-filled bubbles. That said, the largest ones can reach diameters of 5000 km, so they can certainly be considered worlds. These are used for zero-g recreation or (for those adapted to zero-g) as places to live in.
Gravity balloons are similar to freespheres except that they have a layer of asteroid rock on the outside: the weight of the rock counteracts the internal air pressure.
Ederworlds are even bigger than gravity balloons, being much larger than even gas giant planets. They're filled with a lightweight gas like hydrogen, which allows the incredible sizes. Unlike the previous examples, the interior of ederworlds isn't used for habitation, just the surface. Note that these are based on the bubbleworld design, which is mentioned below under Real Life.
Then there's Symme's Worlds, which differ from the previous examples in that most of them have openings at the poles to allow mixing of the outer and inner atmospheres. Most of them also contain luminaires, essentially artificial suns, to illuminate the inner surface.
 Hollow World / int_a2a386c9
featureApplicability
1.0
 Hollow World / int_a2a386c9
featureConfidence
1.0
 Orion's Arm (Website)
hasFeature
Hollow World / int_a2a386c9
 Hollow World / int_a81325d3
type
Hollow World
 Hollow World / int_a81325d3
comment
Final Fantasy:
Final Fantasy IV. It has a unique configuration in that, instead of two habitable surfaces opposed to each other, the Underworld IS the basic, solid planetary sphere, while the Overworld encases it. As proof, the Tower of Bab-Il rises from the Underworld and continues upwards through the Overworld. The Underworld is also considerably smaller, and, being located between the solid sphere and its shell, it lacks a Sun. The magma flowing through it is more than bright enough to do the job, though.
Final Fantasy IX: Gaia is revealed to be this, with Terra being the inside world. Originally, Gaia and Terra were each normal "life exists on the surface" planets, but Terra's incomplete merging with Gaia resulted in it getting tucked inside Gaia's core, with the area you visit near the climax being on the flip side of Gaia's crust.
Final Fantasy XIII mostly takes place on Cocoon, a Hollow World roughly the size of North America were it rolled up into a ball. Humanity resides on the inside surface area of the sphere, which is comprised of several distinct landmasses and oceans, and a giant freaking hole to nowhere. Cocoon floats in the lower atmosphere of Gran Pulse, a planet somewhat larger than Earth, given the apparent scale of Cocoon in comparison to it. Nothing about Cocoon makes sense scientifically, but it works anyway thanks to a million-some Physical Gods forcibly willing it to do things like float above Gran Pulse and have a functional atmosphere, gravity, and a day/night cycle.
 Hollow World / int_a81325d3
featureApplicability
1.0
 Hollow World / int_a81325d3
featureConfidence
1.0
 Final Fantasy (Franchise)
hasFeature
Hollow World / int_a81325d3
 Hollow World / int_a825da3e
type
Hollow World
 Hollow World / int_a825da3e
comment
Magic: The Gathering: The plane of Mirrodin is hollow, mostly metallic, and has five suns - one for each color of mana. Instead of orbitting it, they travel through five channels, called lacunae, that descend into the plane's mana core.
When the plane was taken over and reforged by New Phyrexia, Elesh Norn created nine separate layers or "spheres" nested inside each other. The outside is the Glorious Facade covered in monuments to the Praetors' victory, then the Mirrex is a barren wasteland where the remaining Mirrans try to eke out survival, then a layer dedicated to each of the five praetors and their manifestos, then the Mycosynth Gardens that serve has a protective layer around the Seedcore where Norn is growing her invasion tree.
 Hollow World / int_a825da3e
featureApplicability
1.0
 Hollow World / int_a825da3e
featureConfidence
1.0
 Magic: The Gathering (Tabletop Game)
hasFeature
Hollow World / int_a825da3e
 Hollow World / int_a87a2e5e
type
Hollow World
 Hollow World / int_a87a2e5e
comment
In the Tunnels series, the Earth's core is hollow and contains an Eden-like paradise called "The Garden of the Second Sun".
 Hollow World / int_a87a2e5e
featureApplicability
1.0
 Hollow World / int_a87a2e5e
featureConfidence
1.0
 Tunnels
hasFeature
Hollow World / int_a87a2e5e
 Hollow World / int_a881a68a
type
Hollow World
 Hollow World / int_a881a68a
comment
This is a main plot point in Spider Riders. Hunter finds the Inner-World in the very first episode.
 Hollow World / int_a881a68a
featureApplicability
1.0
 Hollow World / int_a881a68a
featureConfidence
1.0
 Spider Riders
hasFeature
Hollow World / int_a881a68a
 Hollow World / int_aa188702
type
Hollow World
 Hollow World / int_aa188702
comment
The interior of Onyx in Halo: Ghosts of Onyx has a portal to one of these. Specifically, it's a Forerunner Shield World.
 Hollow World / int_aa188702
featureApplicability
1.0
 Hollow World / int_aa188702
featureConfidence
1.0
 Halo: Ghosts of Onyx
hasFeature
Hollow World / int_aa188702
 Hollow World / int_af6a4464
type
Hollow World
 Hollow World / int_af6a4464
comment
The Secret World features a transit network between the various locations across the world, built into the depths of the hollow earth; known as Agartha, said transportation is based around the roots of the World Tree itself, and is attended to by a number of hulking Golems and one eccentric Victorian stationmaster.
 Hollow World / int_af6a4464
featureApplicability
1.0
 Hollow World / int_af6a4464
featureConfidence
1.0
 The Secret World (Video Game)
hasFeature
Hollow World / int_af6a4464
 Hollow World / int_afb9f15a
type
Hollow World
 Hollow World / int_afb9f15a
comment
In Jemjammer Kofuspace is a sphere (essentially a solar system) composed entirely of solid rock — or at least the rock-like material covering the outside of a sphere. Inside, every planet is actually a concave bubble inside the mass.
 Hollow World / int_afb9f15a
featureApplicability
1.0
 Hollow World / int_afb9f15a
featureConfidence
1.0
 Jemjammer (Podcast)
hasFeature
Hollow World / int_afb9f15a
 Hollow World / int_b671ebfe
type
Hollow World
 Hollow World / int_b671ebfe
comment
The World of Synnibarr roleplaying game's titular planet is hollow. According to the backstory, Earth's sun was becoming unstable, and because Earth itself was physically unsuitable, the planet's stellar engineers took Mars and expanded it, hollowed it out, and terraformed it until it was completely unrecognizable to serve as a new home for the evacuated human race. Overlaps with That's No Moon, as a suitably huge power generator was installed in Synnibarr's core to power the artificial planetary heating and atmosphere systems as well as the engine designed to propel the planet to a new star system to take up orbit in. After dozens of catastrophes, wars, and invasions during the 40,000 year journey, the inner core of the planet was abandoned, with the planetary machinery almost completely inaccessible at the top of a thousand-mile high mountain ascending to the planet's geographical core.
 Hollow World / int_b671ebfe
featureApplicability
1.0
 Hollow World / int_b671ebfe
featureConfidence
1.0
 World of Synnibarr (Tabletop Game)
hasFeature
Hollow World / int_b671ebfe
 Hollow World / int_b683f90f
type
Hollow World
 Hollow World / int_b683f90f
comment
The iconic example from Perry Rhodan would be Horror, a hollow world in six distinct layers that at least from the protagonists' perspective seemed to serve primarily as a planet-sized trap for unauthorized users of the recently-discovered intergalactic matter transmitter network connecting at least the Milky Way and the Andromeda Galaxy (plus some outliers) at the time. The "Mobys" from later in the same arc probably also qualify by virtue of being largely sleeping large-moon-sized anorganic lifeforms whose insides were frequently colonized by opportunistic aliens.
 Hollow World / int_b683f90f
featureApplicability
1.0
 Hollow World / int_b683f90f
featureConfidence
1.0
 Perry Rhodan
hasFeature
Hollow World / int_b683f90f
 Hollow World / int_b88b182f
type
Hollow World
 Hollow World / int_b88b182f
comment
The Dark Eye: Downplayed with the discontinued world of Tharun, which was actually an alternate universe (with its own gods and celestial bodies) whose only gates were reached through deep caverns. So it felt like a hollow earth, although it wasn't.
 Hollow World / int_b88b182f
featureApplicability
1.0
 Hollow World / int_b88b182f
featureConfidence
1.0
 The Dark Eye (Tabletop Game)
hasFeature
Hollow World / int_b88b182f
 Hollow World / int_babeae6a
type
Hollow World
 Hollow World / int_babeae6a
comment
Godzilla vs. Kong confirms the existence of terrestrial Hollow Earth ecosystems as well, a massive jungle Lost World over which Kong reigns at the end of the movie. It also reveals that these zones are inaccessible to non-Titan surface dwellers by an inverted gravity barrier that requires specialized vehicles to cross.
 Hollow World / int_babeae6a
featureApplicability
1.0
 Hollow World / int_babeae6a
featureConfidence
1.0
 Godzilla vs. Kong
hasFeature
Hollow World / int_babeae6a
 Hollow World / int_bcadd7cb
type
Hollow World
 Hollow World / int_bcadd7cb
comment
Warhammer 40,000: There are some mentions in the background material of hollow worlds, with the most prominent being the forge world Lucius. The interior surface of this wonder of the Imperium is covered by massive factories powered by an artificial sun of mysterious origin that sits at the planet's core.
 Hollow World / int_bcadd7cb
featureApplicability
1.0
 Hollow World / int_bcadd7cb
featureConfidence
1.0
 Warhammer 40,000 (Tabletop Game)
hasFeature
Hollow World / int_bcadd7cb
 Hollow World / int_c20bb6fc
type
Hollow World
 Hollow World / int_c20bb6fc
comment
Great Ship: The Great Ship is a hollow starship about the same size as Jupiter. It has a hollow core large enough to contain an entire world, Marrow. The rest of the ship is full of thousands of fuel tanks that can fit moons, and even more caverns designed for habitation.
 Hollow World / int_c20bb6fc
featureApplicability
1.0
 Hollow World / int_c20bb6fc
featureConfidence
1.0
 Great Ship
hasFeature
Hollow World / int_c20bb6fc
 Hollow World / int_c43df4d8
type
Hollow World
 Hollow World / int_c43df4d8
comment
Doctor Who: "The Pirate Planet" gives this an interesting twist. Zanak is a gigantic hollow planet with enormous transmat engines at its core. It can literally materialize around smaller planets and squeeze them of their wealth and energies.
 Hollow World / int_c43df4d8
featureApplicability
1.0
 Hollow World / int_c43df4d8
featureConfidence
1.0
 Doctor Who
hasFeature
Hollow World / int_c43df4d8
 Hollow World / int_c501b586
type
Hollow World
 Hollow World / int_c501b586
comment
In Fafhrd and the Gray Mouser, Nehwon is a concave hollow world.
 Hollow World / int_c501b586
featureApplicability
1.0
 Hollow World / int_c501b586
featureConfidence
1.0
 Fafhrd and the Gray Mouser
hasFeature
Hollow World / int_c501b586
 Hollow World / int_c51b8d7a
type
Hollow World
 Hollow World / int_c51b8d7a
comment
Shin Megami Tensei III: Nocturne: At The End of the World as We Know It (roughly 30 minutes into the game), the city of Tokyo becomes the new world, with the central "sun" waxing and waning every few days.
 Hollow World / int_c51b8d7a
featureApplicability
1.0
 Hollow World / int_c51b8d7a
featureConfidence
1.0
 Shin Megami Tensei III: Nocturne (Video Game)
hasFeature
Hollow World / int_c51b8d7a
 Hollow World / int_c6d9f70e
type
Hollow World
 Hollow World / int_c6d9f70e
comment
The Shellworld(s) in Matter is essentially a nesting-doll series of these, although all the inhabitants live on the "outside" of each shell. What's on the inside? Why, artificial stars, some of which roll across the sky and some of which are fixed.
 Hollow World / int_c6d9f70e
featureApplicability
1.0
 Hollow World / int_c6d9f70e
featureConfidence
1.0
 Matter
hasFeature
Hollow World / int_c6d9f70e
 Hollow World / int_c6e9c6cc
type
Hollow World
 Hollow World / int_c6e9c6cc
comment
Super Mario Galaxy and Super Mario Galaxy 2:
Some of the planets in both games resemble hollowed-out spheres covered with huge holes and with a black hole underneath. If you fall into the black hole, you die.
The boss battle against Kingfin takes place inside a hollow planet, and the final battle against Bowser is inside a hollow Sun.
The Spin-Dig Galaxy level from Super Mario Galaxy 2 appears to be located inside one of these.
 Hollow World / int_c6e9c6cc
featureApplicability
1.0
 Hollow World / int_c6e9c6cc
featureConfidence
1.0
 Super Mario Galaxy (Video Game)
hasFeature
Hollow World / int_c6e9c6cc
 Hollow World / int_cffa0297
type
Hollow World
 Hollow World / int_cffa0297
comment
In "Maureen Birnbaum at the Earth's Core", Maureen travels to a world inside the Earth, where she is captured by giant white apes who make her their priestess.
 Hollow World / int_cffa0297
featureApplicability
1.0
 Hollow World / int_cffa0297
featureConfidence
1.0
 Maureen Birnbaum, Barbarian Swordsperson
hasFeature
Hollow World / int_cffa0297
 Hollow World / int_d28490a3
type
Hollow World
 Hollow World / int_d28490a3
comment
The Future of Supervillainy takes place in one of these, full of dinosaurs, lost civilizations, and an eternally shining sun in the center of the Earth. It becomes a place where Gary is able to settle the refugees from a dead planet with the locals' permission.
 Hollow World / int_d28490a3
featureApplicability
1.0
 Hollow World / int_d28490a3
featureConfidence
1.0
 The Future Of Supervillainy
hasFeature
Hollow World / int_d28490a3
 Hollow World / int_d44027e0
type
Hollow World
 Hollow World / int_d44027e0
comment
Doraemon: Nobita's New Dinosaur have an underground dinosaur sanctuary accessible through a cavern entrance, leading to a lost world populated by multiple different types of dinosaurs, including the last pockets of Nobisauruses the gang have spent the entire film searching for. This hidden sanctuary is eventually revealed as the result of a Chekhov's Gun from earlier - when Doraemon and friends accidentally arrived in the Jurassic period instead of the Cretaceous era, and Nobita lose the Breeding Diorama gadget along the way, turns out the gadget continues expanding on it's own and when they reach the correct time, said gadget already became a hidden world of various dinosaurs.
 Hollow World / int_d44027e0
featureApplicability
1.0
 Hollow World / int_d44027e0
featureConfidence
1.0
 Doraemon: Nobita's New Dinosaur
hasFeature
Hollow World / int_d44027e0
 Hollow World / int_d5208281
type
Hollow World
 Hollow World / int_d5208281
comment
Outer Wilds has Brittle Hollow, which is Exactly What It Says on the Tin: a thin crust of stone plates that's empty in the center, and which becomes riddled with gaps as chunks of magma expelled by its volcanic moon batter it. Justified because there's a black hole at its core, which the Nomai left unattended for thousands of years.
 Hollow World / int_d5208281
featureApplicability
1.0
 Hollow World / int_d5208281
featureConfidence
1.0
 Outer Wilds (Video Game)
hasFeature
Hollow World / int_d5208281
 Hollow World / int_d66ef045
type
Hollow World
 Hollow World / int_d66ef045
comment
In Atlantis: The Lost Empire the location of Atlantis is in a humongous air pocket in a cave underneath the water, described as being like the grease trap of a sink.
 Hollow World / int_d66ef045
featureApplicability
1.0
 Hollow World / int_d66ef045
featureConfidence
1.0
 Atlantis: The Lost Empire
hasFeature
Hollow World / int_d66ef045
 Hollow World / int_d930a4c7
type
Hollow World
 Hollow World / int_d930a4c7
comment
Spelljammer got Herdspace described in The Maelstrom's Eye by Roger E. Moore — a crystal sphere with an internal surface (the size of a "small" solar system) covered with inhabitable landscape, much like a naturally-occurring Dyson Sphere.
 Hollow World / int_d930a4c7
featureApplicability
1.0
 Hollow World / int_d930a4c7
featureConfidence
1.0
 Spelljammer (Tabletop Game)
hasFeature
Hollow World / int_d930a4c7
 Hollow World / int_e05ef82a
type
Hollow World
 Hollow World / int_e05ef82a
comment
In The Darkside Detective, Dooley believes in several different Hollow Earth conspiracy theories simultaneously. It's not said whether any of them are actually true, but the general standard of the other conspiracy theories Dooley believes (e.g. "The government is a mass delusion caused by chemicals secretly put in the water supply by the government") suggests that it's unlikely.
 Hollow World / int_e05ef82a
featureApplicability
1.0
 Hollow World / int_e05ef82a
featureConfidence
1.0
 The Darkside Detective (Video Game)
hasFeature
Hollow World / int_e05ef82a
 Hollow World / int_e12886a4
type
Hollow World
 Hollow World / int_e12886a4
comment
In The Golden Transcedence, the agent of the Silent Oecumene claims that they live inside a black hole, which has been hollowed out and so exerts no gravitational pull on them.Details Specifically, they claim to have found a way to produce a second event horizon within the first, and so on, to produce a series of nested 'spheres'. They then populate each new layer as a way to provide nearly unlimited living and computational space. (The agent itself is viewed as being present in a field just outside a miniature black hole of its own.)
 Hollow World / int_e12886a4
featureApplicability
1.0
 Hollow World / int_e12886a4
featureConfidence
1.0
 The Golden Oecumene
hasFeature
Hollow World / int_e12886a4
 Hollow World / int_e23ff2b1
type
Hollow World
 Hollow World / int_e23ff2b1
comment
Masters of the Universe: Eternia is a hollow planet with an entire "Subternia" existing below its surface, with a multi-armed giant in the center holding everything together.
 Hollow World / int_e23ff2b1
featureApplicability
1.0
 Hollow World / int_e23ff2b1
featureConfidence
1.0
 Masters of the Universe (Franchise)
hasFeature
Hollow World / int_e23ff2b1
 Hollow World / int_e270b7e1
type
Hollow World
 Hollow World / int_e270b7e1
comment
Genius: The Transgression has the Hollow Earth as one of its many bardos — pocket realities created when established science is proven wrong. From the presence of things like "brontosaurs" and Piltdown Men, it's implied to also be a catch-all for every paleontological blunder ever committed. It's also been recently taken over by Nazis — to be precise, Manes (creatures and people created in the same way bardos when an established theory or philosophy is abandoned) formed at the end of WW2 when the real Nazis were crushed and almost all faith in their ideology crumbled.
 Hollow World / int_e270b7e1
featureApplicability
1.0
 Hollow World / int_e270b7e1
featureConfidence
1.0
 Genius: The Transgression (Tabletop Game)
hasFeature
Hollow World / int_e270b7e1
 Hollow World / int_e31b50b7
type
Hollow World
 Hollow World / int_e31b50b7
comment
In the miniseries Batman Odyssey, Batman travels Beneath the Earth and finds it hollow and filled with dinosaurs, trolls, wizards, monsters, and so forth. Neal Adams is on board with this idea.
 Hollow World / int_e31b50b7
featureApplicability
1.0
 Hollow World / int_e31b50b7
featureConfidence
1.0
 Batman Odyssey (Comic Book)
hasFeature
Hollow World / int_e31b50b7
 Hollow World / int_e5d45e9a
type
Hollow World
 Hollow World / int_e5d45e9a
comment
Aion: Atrea was hollow, with the Tower of Eternity through the center as the manifestation of the god Aion who provided the inside of the world with heat and light. However, after the Cataclysm, the center of the tower and a good deal of the planet's equator were destroyed leaving an apple-core shaped world held together only by magic. Although the planet orbits a nearby star, only one half of the planet gets any light from the star.
 Hollow World / int_e5d45e9a
featureApplicability
1.0
 Hollow World / int_e5d45e9a
featureConfidence
1.0
 Aion (Video Game)
hasFeature
Hollow World / int_e5d45e9a
 Hollow World / int_eb6802b4
type
Hollow World
 Hollow World / int_eb6802b4
comment
Final Fantasy XIII mostly takes place on Cocoon, a Hollow World roughly the size of North America were it rolled up into a ball. Humanity resides on the inside surface area of the sphere, which is comprised of several distinct landmasses and oceans, and a giant freaking hole to nowhere. Cocoon floats in the lower atmosphere of Gran Pulse, a planet somewhat larger than Earth, given the apparent scale of Cocoon in comparison to it. Nothing about Cocoon makes sense scientifically, but it works anyway thanks to a million-some Physical Gods forcibly willing it to do things like float above Gran Pulse and have a functional atmosphere, gravity, and a day/night cycle.
 Hollow World / int_eb6802b4
featureApplicability
1.0
 Hollow World / int_eb6802b4
featureConfidence
1.0
 Final Fantasy XIII (Video Game)
hasFeature
Hollow World / int_eb6802b4
 Hollow World / int_ef1a245d
type
Hollow World
 Hollow World / int_ef1a245d
comment
In Sanctuary it turns out that the Earth really is hollow, and populated by technologically-advanced humans and Abnormals who migrated underground in order to escape the vampires ruling the world in the past. And the only people that knew were Jekyll and Hyde.
 Hollow World / int_ef1a245d
featureApplicability
1.0
 Hollow World / int_ef1a245d
featureConfidence
1.0
 Sanctuary
hasFeature
Hollow World / int_ef1a245d
 Hollow World / int_f10619d8
type
Hollow World
 Hollow World / int_f10619d8
comment
Tales of the Abyss: The end of the first arc shows that underneath Auldrant's surface lies the Qliphoth, a mass of toxic liquid where the only lands remaining are two small islands holding Yulia City and the Tower of Rem, respectively. It's revealed that the Outer Lands used to be part of the Qliphoth, but that they had been raised up aeons ago to escape the miasma. And the Outer Lands are starting to crumble and fall, leading to the party having to lower the Outer Lands back down to prevent more casualties.
 Hollow World / int_f10619d8
featureApplicability
1.0
 Hollow World / int_f10619d8
featureConfidence
1.0
 Tales of the Abyss (Video Game)
hasFeature
Hollow World / int_f10619d8
 Hollow World / int_f1938c51
type
Hollow World
 Hollow World / int_f1938c51
comment
More Information Than You Require features a long section on the mole-manic societies dwelling within the hollow Earth, including a list of 700 mole-man names and countless allusions to many of the other works listed on this page.
 Hollow World / int_f1938c51
featureApplicability
1.0
 Hollow World / int_f1938c51
featureConfidence
1.0
 More Information Than You Require
hasFeature
Hollow World / int_f1938c51
 Hollow World / int_f25e9ca
type
Hollow World
 Hollow World / int_f25e9ca
comment
Reptilis Rex is based on the premise that Hollow Earth is real and that the Lizard Folk living in the center are forced to leave and integrate into human society with limited success.
 Hollow World / int_f25e9ca
featureApplicability
1.0
 Hollow World / int_f25e9ca
featureConfidence
1.0
 Reptilis Rex (Webcomic)
hasFeature
Hollow World / int_f25e9ca
 Hollow World / int_f3ef0f86
type
Hollow World
 Hollow World / int_f3ef0f86
comment
In the Artemis Fowl series, the Fairies moved to inside the Earth in recent times — that or Beneath the Earth, depending on how you interpret it.
 Hollow World / int_f3ef0f86
featureApplicability
1.0
 Hollow World / int_f3ef0f86
featureConfidence
1.0
 Artemis Fowl
hasFeature
Hollow World / int_f3ef0f86
 Hollow World / int_f5d2ead0
type
Hollow World
 Hollow World / int_f5d2ead0
comment
Dr. Suzuki in Transformers: Cybertron believes the world is hollow, with a hole at the North Pole leading to the inside. She's wrong, but there is a big massive cavern full of ancient Decepticons.
 Hollow World / int_f5d2ead0
featureApplicability
1.0
 Hollow World / int_f5d2ead0
featureConfidence
1.0
 Transformers: Cybertron
hasFeature
Hollow World / int_f5d2ead0
 Hollow World / int_f6e776bb
type
Hollow World
 Hollow World / int_f6e776bb
comment
The theory is referenced in Kong: Skull Island by Houston Brooks as a possibility to the origins of kaiju. Sure enough, Skull Island is located above some kind of fissure from which monsters like Skullcrawlers emerge. They may not be implying the whole planet is hollow, only that there is a large enough space underneath Skull Island for a whole ecosystem of ancient monsters to survive in.
 Hollow World / int_f6e776bb
featureApplicability
1.0
 Hollow World / int_f6e776bb
featureConfidence
1.0
 Kong: Skull Island
hasFeature
Hollow World / int_f6e776bb
 Hollow World / int_f74b5f80
type
Hollow World
 Hollow World / int_f74b5f80
comment
The Babylon 5 station could technically be considered a "world" of this sort, but there's a reason for this. The station is a design called an O'Neill Cylinder. By rotating along the cylindrical axis, the reactive centrifugal inertia produced along the inner surface becomes an artificial gravity. It was the best way humanity had at the time for producing artificial gravity; they didn't gain access to alien-based gravity generator technology until after 2261 (Season 4).
 Hollow World / int_f74b5f80
featureApplicability
1.0
 Hollow World / int_f74b5f80
featureConfidence
1.0
 Babylon 5
hasFeature
Hollow World / int_f74b5f80
 Hollow World / int_ff9ab17f
type
Hollow World
 Hollow World / int_ff9ab17f
comment
Such worlds turned up in Star Trek: The Next Generation and Star Trek: Voyager. The TOS episode "For The World Is Hollow And I Have Touched The Sky" had a variation, a shell covering an artificial planetoid to hold the atmosphere in.
 Hollow World / int_ff9ab17f
featureApplicability
1.0
 Hollow World / int_ff9ab17f
featureConfidence
1.0
 Star Trek: The Next Generation
hasFeature
Hollow World / int_ff9ab17f

The following is a list of statements referring to the current page from other pages.

 Hollow World
processingCategory2
Otherworld Tropes
 Hollow World
processingCategory2
Settings
 Hollow World
processingCategory2
Speculative Fiction Tropes
 Hollow World
processingCategory2
Tropes of the Jungle
 Son of the White Horse (Animation) / int_ad4578de
type
Hollow World
 Endride / int_ad4578de
type
Hollow World
 Fushigiboshi no★Futagohime / int_ad4578de
type
Hollow World
 The Last: Naruto the Movie / int_ad4578de
type
Hollow World
 Twin Princess of Wonder Planet / int_ad4578de
type
Hollow World
 B.P.R.D. (Comic Book) / int_ad4578de
type
Hollow World
 Batman Odyssey (Comic Book) / int_ad4578de
type
Hollow World
 Disney Ducks Comic Universe (Comic Book) / int_ad4578de
type
Hollow World
 Hellboy (Comic Book) / int_ad4578de
type
Hollow World
 Super Dinosaur (Comic Book) / int_ad4578de
type
Hollow World
 The Multiversity (Comic Book) / int_ad4578de
type
Hollow World
 The Warlord (Comic Book) / int_ad4578de
type
Hollow World
 The Warlord (DC) (Comic Book) / int_ad4578de
type
Hollow World
 Valérian (Comic Book) / int_ad4578de
type
Hollow World
 Wonder Woman (Charles Moulton) (Comic Book) / int_ad4578de
type
Hollow World
 Abraxas (Hrodvitnon) (Fanfic) / int_ad4578de
type
Hollow World
 The New Age Of Monsters (Fanfic) / int_ad4578de
type
Hollow World
 Aquaman (2018) / int_ad4578de
type
Hollow World
 Kong: Skull Island / int_ad4578de
type
Hollow World
 Naruto 7 The Last
seeAlso
Hollow World
 Halo: The Cole Protocol / int_ad4578de
type
Hollow World
 Land of Oz / int_ad4578de
type
Hollow World
 Manifold: Space / int_ad4578de
type
Hollow World
 Maoyu / int_ad4578de
type
Hollow World
 Maureen Birnbaum, Barbarian Swordsperson / int_ad4578de
type
Hollow World
 Mission of Gravity / int_ad4578de
type
Hollow World
 Pellucidar / int_ad4578de
type
Hollow World
 Star Maker / int_ad4578de
type
Hollow World
 The First Men in the Moon / int_ad4578de
type
Hollow World
 The Monster Of Lake LaMetrie / int_ad4578de
type
Hollow World
 The Salvation War / int_ad4578de
type
Hollow World
 The Terror Of Blue John Gap / int_ad4578de
type
Hollow World
 KarlSchroeder
seeAlso
Hollow World
 Ptitle3tzv6fw4
seeAlso
Hollow World
 Touhou – ZUN's Music Collection (Music) / int_ad4578de
type
Hollow World
 The Dollop (Podcast) / int_ad4578de
type
Hollow World
 Ashworld (Roleplay) / int_ad4578de
type
Hollow World
 Star Trek: The Original Series / int_ad4578de
type
Hollow World
 The Odyssey / int_ad4578de
type
Hollow World
 Tsuburaya Dinosaur Trilogy / int_ad4578de
type
Hollow World
 Genius: The Transgression (Tabletop Game) / int_ad4578de
type
Hollow World
 Hollow Earth Expedition (Tabletop Game) / int_ad4578de
type
Hollow World
 Mystara (Tabletop Game) / int_ad4578de
type
Hollow World
 Princess: The Hopeful (Tabletop Game) / int_ad4578de
type
Hollow World
 Spelljammer (Tabletop Game) / int_ad4578de
type
Hollow World
 The Strange (Tabletop Game) / int_ad4578de
type
Hollow World
 Aion (Video Game) / int_ad4578de
type
Hollow World
 Alluna and Brie (Video Game) / int_ad4578de
type
Hollow World
 Alnam no Kiba (Video Game) / int_ad4578de
type
Hollow World
 Final Fantasy XIII (Video Game) / int_ad4578de
type
Hollow World
 Mahou Daisakusen (Video Game) / int_ad4578de
type
Hollow World
 Nehrim (Video Game) / int_ad4578de
type
Hollow World
 NOBY NOBY BOY (Video Game) / int_ad4578de
type
Hollow World
 Shin Megami Tensei III: Nocturne (Video Game) / int_ad4578de
type
Hollow World
 Terranigma (Video Game) / int_ad4578de
type
Hollow World
 The Darkside Detective (Video Game) / int_ad4578de
type
Hollow World
 The Legend of Zelda: Majora's Mask (Video Game) / int_ad4578de
type
Hollow World
 Danger Mouse / int_ad4578de
type
Hollow World
 Inside Job (2021) / int_ad4578de
type
Hollow World
 Spartakus and the Sun Beneath the Sea / int_ad4578de
type
Hollow World
 Storm Hawks / int_ad4578de
type
Hollow World
 Strange World / int_ad4578de
type
Hollow World
 SuperMansion / int_ad4578de
type
Hollow World
 Atomic Robo / Comicbook / int_ad4578de
type
Hollow World