Yep. HOTEL CASANUS. "On a small island nestled between Antwerp and Ghent in Flanders, Belgium lies what could be the most remarkable hotel ever. Shaped like a giant anus, Hotel CasAnus just screams, stay inside me!"
I said what, what? In the butt.
"Spend the Night in a Giant Anus". [ripleys.com, thanks Theremina]