An Orwellian sculpture with eyeball cameras watches passersby.

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

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

This automated sculpture of two men peeing will spell out text messages with their micturition.

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

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

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

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

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

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

The first museum in the world devoted to sexual gadgetry.

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

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

Macabre astrological automaton clock dating to the late 1400s.

A mocking tribute to the past and modern leadership of Prague.

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

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

An antique curios dealer and hybrid taxidermist.

Inside a former cabaret, seven floors of erotic art.

A museum dedicated to one of Paris’s most famous residents, tucked into a corner of one of the city’s most famous squares.

This frog-themed restaurant was frequented by Picasso, Saint-Exupéry, and more.