An otherworldly alpine pasture in Slovenia with historical ties to WWII and architecture that recalls Middle Earth.

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

A whimsical bridge adorned with decorative dragons.

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.

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

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

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

The only museum with its curator—and her pets—buried inside.

Where Venice's gondolas go for a tune-up.

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

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

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

100 year tradition of fist fights, marked by marble footsteps.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

Go inside to really appreciate this 500-year-old technological masterpiece.

Numerous stone coffins from different centuries, lined up in a sixth century basilica.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

The mysterious “claw marks” said to be left by the Devil on Pisa’s famous cathedral.