Twilight Princess City in the Sky

[Kal/0]

The seventh dungeon of Twilight Princess, City in the Sky, is speculated to be based off of/influenced by a painting called "Another World" by M. C. Escher. The creatures in the paintings resemble Oocca's, and are seen standing on walls, in Twilight Princess the Oocca are found running on the walls and floor.
link to more info on "Another World": http://en.wikipedia.org/wiki/Another_Wor...C._Escher)
Also note that both Zelda wiki's feature this information on their Oocca article's:
http://zelda.wikia.com/wiki/Oocca
http://zeldawiki.org/Oocca
I personally found this really interesting.