Gargoyle head that brings good luck.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

Large, airy hallways hide within an impenetrable fortress that beckons urban explorers.

Yugoslavia's biggest underground airport lies in ruins.

Hidden in the forest are the remains of a former World War II chemical plant.

In the city forest of Augsburg are oval, artificial ponds formed from a World War II bombing campaign.

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.

This abandoned Greek island was the last active leper colony in Europe.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

This strange statue features a bust of the famous composer plopped atop a woman's body.

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

This massive subterranean fissure is known as the "underground Grand Canyon."

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

A cemetery for Slovenian notables also serves as a popular recreation space.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This abandoned Slovenian military barracks has become a punky-political art squat.

A whimsical bridge adorned with decorative dragons.

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

A crumbling World War I fort that is reached through a series of concrete tunnels.

According to legend a man pooped out the window of this tower to prove that it was straight.

This famed marionette theater and museum is bursting with imaginative string puppets.