This sprawling Belgian fort was once thought of as impenetrable but now it is simply an abandoned relic.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

Thousands of medieval skeletons lie just beneath Kranj’s main square.

This Slovakian statue of an emerging sewer worker might just be a bronze peeping tom.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

An ode to a soldier who came to town, fell in love, then began making his own sparkling wine.

No one knows the origin of this creepy little stone man with an oversized phallus.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

A mesmerizing landscape of 18th-century cellars carved out of the land.

According to local legend, the devil shattered this column after losing a bet.

This moving sculpture depicts contortionist positions based on photographs of gymnast Věra Čáslavská, who protested the Soviet invasion of Czechoslovakia.

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

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

Dedicated to the works of the legendary special effects artist.

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

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

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

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

The first museum in the world devoted to sexual gadgetry.

Spitfire airplanes with butterfly wings hover over Prague’s skyline.

Macabre astrological automaton clock dating to the late 1400s.

A famous big wave from Japan serves as a tribute to the victims of the disastrous Elbe flood.