This spooky statue sits outside a famous Prague theater.

A surreal statue honoring Prague's favorite literary son.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

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

Steadily reminding Czechia of its past.

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

Monument to a suicide protesting the Soviet invasion.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

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

This artificial cave looks like something out of a fairytale.

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.

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.

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

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

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

Macabre astrological automaton clock dating to the late 1400s.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Stare out over the lagoon and beyond from this 10th-century campanile on the island where the city of Venice began.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

Two stone columns flank the grand Venice square, but there were supposed to be three.

The oldest of Venice's plague quarantine stations, designed to keep the medieval city safe from disease.