Uh, pardon me, ma'am, but I couldn't help noticing that there's a Columbo statue in the middle of Budapest.

This easily overlooked memorial immortalizes the scars from the 1956 Hungarian Revolution.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

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

Archduke Ferdinand II's collection of rare objects is considered one of the oldest museums in the world.

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

See the rare bloom of the "Queen of the Night" cactus at one of the world's largest succulent collections.

One of a series of no-purpose kinetic artworks by Swiss sculptor Jean Tinguely.

Vines grow up the metal bars in this public park created from an old machine factory.

Museum dedicated to wax representations of disfiguring diseases.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

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

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

A surreal statue honoring Prague's favorite literary son.

The only surviving piece of Copenhagen's 16th-century defensive wall.

This ordinary street was made infamous by a legendary visit from the devil.

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

Bored potato-guarding Nazis etched their thoughts onto a brick storage building in Copenhagen's Meatpacking District.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

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

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.