This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

Dramatic sea stacks adorn the coast of this small village on the Adriatic coast.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

Europe's only Temple of Mithras located in a natural cave.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

A three-story, three-dimensional hobo clown in a tutu welcomes CVS shoppers.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

This jagged colossus of a building is mostly held together by an enormous concrete exoskeleton.

The "world's biggest dinosaur" once housed a creationist museum in its abdomen.

A giant knight, sex education, date shakes, and Jesus coexist happily in this Coachella Valley desert oasis.

The Uros people live on floating reed islands in lake Titicaca.

An ancient Incan convent on Lake Titicaca's Island of the Moon.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

Bridge that died in war and was resurected.

This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

This once-grand marvel of engineering is now 41 miles of scenic hiking trail.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

These crumbling Nazi artillery bunkers are now fair game for massive graffiti projects.

This church on a Tohono O'Odham reservation has stood since 1797.

At an isolated roadside rest area stands a monument marking where famous Western star Tom Mix died in 1940.

These haunting ruins belong to an ancient village that once had one hell of a view.