This one-time health resort was used by aristocrats around the world.

A miniature train-ride through Slovenia's largest cave system.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

Macabre astrological automaton clock dating to the late 1400s.

A bus with a butt and biceps to put Olympic athletes to shame.

The oldest garden in Prague, once part of an medieval orchard.

What looks like a crashed Zeppelin is actually a bright, airy reading room perched atop a modern museum.

Microscopic scenes; some call it novelty, some call it art.

An old asylum graveyard that's been abandoned for half a century attracts those seeking a dark thrill.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

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

Walk through Czech history in Prague's largest graveyard.

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

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

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

Two stunning 17th-century libraries and a cabinet of curiosities.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

An eccentric aristocrat brought these Australian natives to their current Scottish home.

Wallabies live naturally on this Irish island.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

World's largest collection of serial killer artwork and other macabre exhibits.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.