The idea is, map a place which is described in literature.

This may be a dungeon/city map (e.g. Hobbingen) or a regional map (e.g. The Shire) and it could of course be inspired by fantasy books (e.g. Tolkien, Martin...), but also by crime/mystery thrillers (maybe a crime scene or a town were the action takes place) or historical/mythical descriptions (e.g. Atlantis, Ithaka...).

The map should include at least a small text/reference to where it comes from, so everyone is able to understand the concept behind it.