Amusement Park Ride Map??
Just looking at Bordie's Dungeon Experience map in the finished forums, link here:
Bordie's Map not so much the map, as the idea behind the map.
Create an amusement park ride - I'm thinking of the kind you get in a "car" or boat riding on a fixed track that meanders through a building or contained open area with different settings in each room/area.
Like a haunted house ride, or the rides you find at Disney - but flavored to a specific fantasy genre of your choosing. Dark fantasy, post-apocalyptic, high fantasy, the Underdark, the Old West, etc. Just stick with a theme and have rooms/areas focused iconic scenes from such a genre.
This could work either as a full monthly challenge or Lite one.