BudgetTravel has a slide show of what they've deemed the "World's Weirdest Hotels." No Madonna Inn, but more interesting to me than theme rooms anyway are places where the entire hotel structure is an oddity. Top, the Hotel Costa Verde near Quepos, Costa Rica. Left, at the Capsule Hotel in Den Haag, Netherlands, you can sleep in an escape pod from a 1970s oil rig.
"World's Weirdest Hotels, Part Deux"