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

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

Local folklore claims that this wall was not built for defense, but to provide labor during a time of famine.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

A series of playful yellow penguins share a serious message about the environment.

A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

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

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

The medieval "Bearded Man" relief still serves as a clever flood warning marker.

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

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

Nine bronze hands protruding from a wall honor the student uprising that led to the fall of Czechoslovakia's Communist government.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

A curious memento mori hangs in the magnificent Cathedral of Segovia.

These "mermaids" that surround a plaza in Segovia are rather sphinx-like.

A controversial art piece that harkens back to local folklore.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

An unsettling sculpture of a boy hanging out in a street in Ghent has been baffling visitors for years.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

Intricate metal sculpture that's half gothic cathedral, half construction equipment.