Fictional dimensions

The Backrooms are a fictional location originating from a 2019 4chan thread. One of the best known examples of the liminal space aesthetic, the Backrooms are usually portrayed as an impossibly large extradimensional expanse of empty rooms, accessed by exiting reality.

Flatland: A Romance of Many Dimensions is a satirical novella by the English theologian, Anglican priest and schoolmaster Edwin Abbott Abbott, first published in 1884 by Seeley & Co. of London. Written pseudonymously by "A Square", the book used the fictional two-dimensional world of Flatland to satirise the class and gender hierarchies of Victorian society, but the novella's more enduring contribution is its examination of dimensions.

fantasy world created by C.S. Lewis, setting of The Chronicles of Narnia

thumb|upright=1.3|Hyperspace travel is sometimes depicted as a starfield that streaks toward the viewer. A visual effect like this was first used in the 1974 film Dark Star (film)|Dark Star, and it became a popular cinematic depiction, with a similar effect being used in the Star Wars franchise.

fictional universe within the Star Trek multiverse

Ravenloft is a campaign setting for the Dungeons & Dragons roleplaying game. It is an alternate time-space existence known as a pocket dimension or demiplane, called the Demiplane of Dread, which consists of a collection of land pieces called "domains", brought together by a mysterious force known only as the Dark Powers. Each domain is tailored to and mystically ruled by a being called a Darklord who is forever trapped and surrounded by magical mists surrounding the domain. Strahd von Zarovich, a vampire in the original AD&D Ravenloft I6 module released in 1983, became the first Darklord, bot

Japanese manga series

episode of Doctor Who (S8 E9)

fictional place in the DC Universe

In the Marvel Comics multiverse, Earth-616 is the primary continuity in which most Marvel Comics titles take place.