Are there any maps anywhere that have multiple areas like a Heaven, Hell, and Purgatory? Like for instance, a main area, and then a teleporter sending you to Heaven, Hell or Purgatory even? What about a map with all of these realms? I think that would be cool.

It would be awesome. Reminds me of the Doom era and all of those wonderful Doom and Doom 2 user-created levels following that theme.