The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

The first museum in the world devoted to sexual gadgetry.

A steampunk-styled three-floor factory churning out art, activism, and electronic beats.

A church of bones, decorated with 40,000 human skeletons.

The hidden lair of an alchemist rediscovered in a 2002 flood.

Countless grotesque faces stare out from this eerie Prague art wall.

A Jenga-style cylindrical tower of books that appears to go on forever.

One of the best collections of wax anatomical models in the world.

The house that took a plunge into the facade of a museum.

A monument marks the site where the famed composer stopped to relieve himself on a long journey. Just one problem: Mozart never went to Raschala.

Is this a portal to another side of the cosmos?

These are probably the most beautifully-crafted toilets you've ever seen.

Austria's 5-star prison.

At this exhibit on the world of poison, venomous animals steal the show.

This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

Part ski resort, part modern art space, this lodge brings giant metal spiders and bloody doors to the Austrian Alps.

A unique opportunity to stay the night in retrofitted sections of sewer pipe.

Mozart's skull may be held in this collection, but definitive proof continues to elude scientists.

This skeleton-filled altar piece served as a backdrop to one of the most iconic scenes in "The Sound of Music."

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

"World machine" built by an untrained Austrian farmer.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

Resting in the middle of an Austrian river, this sci-fi "island" lets people cross in neon style.