History Main / LostWorld

*** Not much of a retcon- see Wonder Woman's SilverAge adventures.

* ''Lands of Mystery'', a supplement for the 1980's pulp game ''JusticeInc.'', was all about gaming in a Lost World setting. About half the book was taken up with Zorandar, a setting/campaign that had everything from dinosaurs to a lost Roman colony.

* The titular Hollow Earth of ''HollowEarthExpedition'' is all about this trope, featuring never ending jungle, lost civilizations, dinosaurs, and increased healing rates.

* Another LostWorld in TheDCU is "Skartaris" (a world located within the hollow Earth, accessible through a portal in the Arctic wilderness), which is the setting of Mike Grell's ''TheWarlord'' (though other DC Universe characters would visit there from time to time as well). An episode of ''[[WesternAnimation/JusticeLeague Justice League Unlimited]]'' is set there.

* Neverland, from J.M. Barrie's ''PeterPan''.

* ''{{Dinotopia}}'' plays this trope about as straight as possible.

* In the original book ''TheWonderfulWizardOfOz'' by Creator/LFrankBaum, the Literature/LandOfOz is a remote country that's surrounded by a vast, unpassable desert, keeping it isolated from the rest of the world. Sequel novels would establish that there were several other "fairy countries" bordering Oz's desert, all located on an unnamed continent somewhere in "the Nonestic Ocean". Baum was never clear about what region of the world this was supposed to be in, though a popular [[{{Fanon}} fan theory]] places it somewhere near Australia. Anyway, one of the sequels had a magic spell make Oz and its neighbors invisible to the outside world and reachable only through magic, so this became something of a moot point.

* There are two such places in Steve Alten's {{Meg}} series. The first one is the Marianas Trench, which is where the titular Megalodons are found. Its [[DownplayedTrope downplayed]], as people already knew of its existence, it just contained a prehistoric creature or two. Playing it much more straight is the Panthalassa sea in the sequal, Hell's Aquarium. Its a primordial sea contained under a rock ceiling at the bottom of the pacific ocean, and is home to an abundance of ancient sea creatures which have formed a comfortable food chain.

* ''GilligansIsland''
* The ''Series/LandOfTheLost''
* The various places encountered in the Bermuda Triangle by the characters of 1977's ''TheFantasticJourney''.

* ''{{Sanctuary}}'' has Hollow Earth, a subterranean city with incredible technology.

* Wherever the hell ''TowerPrep'' is. It gets sent into this territory because it is full of flora and fauna that shouldn't coexist near each other, and the constellations don't match up with anywhere in North America.

* Each of the ''VideoGame/Uncharted'' games has one of these. The first game has a lost spanish colony on a small pacific island, the second has Shambala in the Himalayas and the third has the "Atlantis of the Sands" in the middle of a vast, barren part of the Arabian desert. Considering the game takes place in the modern day and all are open to the sky, it's never explained why none of them have been discovered accidentally before now.

* The AlcatrazSeries of books takes this trope UpToEleven: something like half the Earth's surface is made up of {{Lost World}}s called the Free Kingdoms where all sorts of magical and nonsensical things exist. They only go unnoticed because almost all the world's books, maps, and other sources of information are controlled by [[MilkmanConspiracy an ancient conspiracy of Evil Librarians]] who [[TheMasquerade don't want you to learn the truth]].

* The lost world of Aphrodisia (home to the [[LadyLand all-female Lubby-Dubby Tribe]]) in ''Film/CarryOn Up the Jungle''.

[[TechnologyMarchesOn No longer popular (or even credible) with the arrival of satellite mapping and GPS]]. Most modern fictions that use this trope are set in the pre-satellite past. The Lost World has now been adapted to serve in even more mysterious places, such as outer space or deep underground. You are now much more likely to see a civilization thought long dead on an episode of Star Trek than on your modern action show.

* In the ''WesternAnimation/{{Futurama}}'' episode "Fun on a Bun", Fry falls into a hole in a German glacier and discovers a secret tribe of Neanderthals, along with wooly mammoths, saber-tooth tigers and giant sloths.

* TheDCU has "Gorilla City", with its own phlebotinum ("invisible force fields") used to hide it, and populated by ''[[EverythingsBetterWithMonkeys telepathic apes]]''. It's appeared on TV in both ''{{Superfriends}}'' and ''JusticeLeague''.

* Another LostWorld in TheDCU is "Skartaris" (a world located within the hollow Earth, accessible through a portal in the Arctic wilderness), which is the setting of Mike Grell's ''TheWarlord'' (though other DC Universe characters would visit there from time to time as well). An episode of ''[[JusticeLeague Justice League Unlimited]]'' is set there.

* Film/KingKong's home, which is generally referred to as Skull Island. In the original film, the island was never named, although its most recognizable feature, Skull Mountain, was named; likewise in the 70s remake, the only reference is to "the beach of the skull".
* Doyle's ''Literature/TheLostWorld'' was adapted as [[Film/TheLostWorld a silent film in 1925]], with effects by Willis O'Brien, who also worked on ''Film/KingKong''. The film was also adapted in 1960 (with [[SpecialEffectsFailure Giant Lizards in Makeup]] playing Dinosaurs), 1992 (with its own sequel--with Handpuppet Dinosaurs) and 1998 (pilot for the above mentioned TV series).

* The LostWorld of Aphrodisia (home to the [[LadyLand all-female Lubby-Dubby Tribe]]) in ''Film/CarryOn Up the Jungle''.

* DocSavage encountered several {{Lost World}}s, the most significant being the lost Mayan kingdom that provided him with the gold necessary to carry on his crusade. Several of these {{Lost World}}s are also [[CityOfGold Cities Of Gold]].

* The ''{{Tunnels}}'' series has the Garden of the Second Sun, where it is theorized that many stages of evolution missing from the fossil record took place. It's also based heavily off of [[ThoseWackyNazis Nazi theories about a hollow earth;]] see the entry in Mythology below.

* The ''DungeonsAndDragons'' game-setting of ''{{Mystara}}'' has a long history with this trope, featured in such classic adventures as "Isle of Dread" or "Night's Dark Terror". The Hollow World boxed set converted the interior of the planet into a massive LostWorld a la Pellucidar, chock full of prehistoric creatures and lost civilizations.

** ''Worlds of Franchise/{{Ultima}}: TheSavageEmpire'' is set in Eoden, a copy of Doyle's Lost World complete with lost tribes, dinosaurs, and a "Dr. Livingstone, I presume" moment.

** ''Worlds of Franchise/{{Ultima}}: Savage Empire'' is set in Eoden, a copy of Doyle's Lost World complete with lost tribes, dinosaurs, and a "Dr. Livingstone, I presume" moment.

* [[Literature/CharlieAndTheChocolateFactory Willy Wonka]] discovered the Oompa-Loompa tribe that became his secret workforce in one of these, which overlaps with a HungryJungle. In the pre-{{Bowdlerised}} original text of ''Charlie and the Chocolate Factory'' it was in DarkestAfrica (these Oompa-Loompas were specifically black pygmies), while later editions and all adaptations change it to the FictitiousCountry of Loompaland, which even the geography teacher in the Golden Ticket tour group has never heard of.

* ''Journey to the Beginning of Time'', a Czech film that was syndicated to American TV, most notably on ''GarfieldGooseAndFriends''.

** ''VideoGame/DonkeyKongCountry4DixieKongsDoubleTrouble'' has a lost world hidden in an island that is underwater and rises when you reveal it. However, the environment is nothing more than a mountainside with barren forests and a lake.

Named after ''Literature/TheLostWorld'' by Sir Arthur Conan Doyle, this is, naturally, a geographic location off all maps.

* ''VideoGame/DonkeyKongCountry 2'' has a Lost World area that is filled with several types of fauna and it isn't found anywhere else on the island. K. Rool is found in an ancient temple of sorts and defeating him sends him flying into the center of the light the temple is radiating, causing the Lost World to implode and sink the island.
** The 3rd game has a lost world hidden in an island that is underwater and rises when you reveal it. However, the environment is nothing more than a mountainside with barren forests and a lake.

* ''{{Cavewoman}}'' is supposedly set in the late Cretaceous (with the [[JunglePrincess main character]] having arrived there by time travel) but everything can be found in the primal jungle from StockDinosaurs to giant snakes, [[FrazettaMan hominids]], [[BigfootSasquatchAndYeti yetis]] and... [[AllTrollsAreDifferent trolls]]. Plus, one of the issues is named "Pangaian Sea".

* The LostWorld of Aphrodisia (home to the [[LadyLand all-female Lubby-Dubby Tribe]]) in ''CarryOn Up the Jungle''.