The Hotel CasAnus is a hotel shaped like an anus. It's real, it's in Belgium, and you can spend the night in it if you have some kind of scatological thing going on.
Actually, anyone can stay there for about £100 a night. You just have to have some weird desire to sleep up a butt. A gross hotel shaped like a large intestine, that is. It was created by Dutch artist Joep Van Lieshout. And I'm not sure I get the appeal but then again, maybe I don't "get" art. [OddityCentral]