Be(w)ar(e) the moat around this historic Czech castle.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

One of the famous Czech artist's lesser-known Prague installations appears to be a glowing fetus affixed to a drainpipe.

A surreal statue honoring Prague's favorite literary son.

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

Looming communist pillar with a Czech twist.

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

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

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

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

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

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

The first museum in the world devoted to sexual gadgetry.

Macabre astrological automaton clock dating to the late 1400s.

A tower marking the spot where Yugoslavia began its resistance against the invading Nazis stands neglected, but not quite forgotten.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

This giant glowing "beanpole" adds much-needed pops of color to an otherwise drab power plant.

This statue has a painful history, but activists have since recontextualized it as a way to educate visitors about the dangers posed by fascist regimes.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

One of the largest busts in the world celebrates the German city's erstwhile namesake.

This giant statue of a vulva became internationally famous after an American exchange student got stuck in it.

Germany has its very own Centralia, whose spark remains attributed to "spontaneous combustion."

In this brilliant blue spring in Germany, legend has it that a sad mermaid learned to finally laugh.

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