A surreal statue honoring Prague's favorite literary son.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

This doorless 20th-century elevator doesn't stop or slow down.

An eerie, existential museum dedicated to the author of "The Metamorphosis."

Street artists transformed an abandoned air vent into the beloved Star Wars robot.

Buried five stories underground, this Soviet bunker is packed with gas masks and Cold War paraphernalia.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

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.

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

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

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

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Museum dedicated to awful artwork.

Illegal drag racing two stories beneath Chicago’s streets.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

A science teacher's dream.

All of Chicago's wood-paved streets are long gone but two alleys remain.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.

These chunky stone towers out in Lake Michigan are the key to Chicago’s drinking water.

This museum celebrating the almighty dollar lets visitors literally stand in the shadow of a million bucks.