The gravestones in this historic cemetery are carved with mysterious faces.

The most complete statue of this Aztec god sits a top a throne carved with images of hallucinogenic plants.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

The walls and streets of the ancient city are peppered with penises.

Rare recess caves fill this unbelievably beautiful Ohio park.

American bombs, morbid memorabilia, and graphic photographs tell the story of the CIA-led “Secret War” from the Pathet Lao perspective.

The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

These memorials built by an eccentric bachelor on the side of Interstate 5 cause both wonder and traffic accidents.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The longest and widest floating bridge in the world.

The Neolithic megalith was one of the first archaeological ruins protected by the British government.

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

Cornish legend says these ancient circles were people turned to stone for playing hurling on a Sunday.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

This Portland Art gallery doubles as a studio that supports adults with intellectual and developmental disabilities.

This strange sculpture of a menacing skull surrounded by sun rays was discovered at the foot of the Pyramid of the Sun.

Before becoming a public park, this spot was a shell midden, a fort, and an amusement park.

The location of this historic castle was inspired by a donkey.

This colossal ancient jaguar sculpture was used as a vessel for the hearts torn from sacrificial victims.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

The blinking light atop the iconic landmark has been sending secret messages for decades.