Above: Exploration for the entrance to "The Land of the Dead."
The LOTD, which would become "The Land of the Remembered" was a great place to explore. A place where almost anything could happen. I reckoned that gravity wouldn't act exactly the same way as it did on earth... so played with floating walk ways... upside down roads etc. This land was neither night nor day. There was no bottom or top to this world... it just kept going and going.
In the final movie, the hero comes through a much simpler door... something more parallel with the "Land of the Living." But a number of ideas made it into the overall treatment of the world.
More entrance ways to come.