If you were to take an Escher drawing of a house and give it to an architect/interior design team with a boner for modern minimalism, you have the setting for my dream last night. I went to a commune where a lot of my friends lived and spent a grand deal of time trying to get to people's bedrooms only to find (usually) that I'd gone up the wrong flight of stairs, or that my shit depth perception was playing tricks on me.
It wasn't a particularly frustrating dream. There was an actual plot, but the part that I remember was the giant house/building that everyone (including myself at the end) lived in. Fancy.