Fictional story elements introduced in 1942

set of rules devised by the science fiction author Isaac Asimov

fictional encyclopædia in several science-fiction universes

country house in The Adventures of Tintin

REDIRECT Foundation universe#Trantor

The Bat-Signal is a distress signal device appearing in American comic books published by DC Comics, as a means to summon the superhero Batman. It is a specially modified searchlight with a stylized emblem of a bat affixed to the light, allowing it to project a large bat symbol onto cloudy night skies over Gotham City.

fictional Chinese taxonomy mentioned by Jorge Luis Borges

fictional setting for most of the characters that appear in Archie Comics