These pillars are one of the few remnants from the mysterious lost empire of Makuria.

A perilous medieval road leading right into the sea.

This lab's maddening silence is good for business but bad for sanity.

The ship that got left behind.

The remains of a doomed Antarctic plane, buried beneath layers of ice and snow, await those willing to do a bit of digging.

At this ancient settlement at the foot of Mount Babadağ, honeycomb tombs are carved into a round cliff.

This gravestone and its inscription inspired a movement that has spanned generations and saved countless lives.

An Aztec snake god has taken the material form of an apartment complex.

An English brewery transported to North Korea.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

Abandoned ships along a deserted beach feel like the set of a post-apocalyptic thriller.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

An aluminum skeleton brings Chinese mythology to the French shore.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

One-of-a-kind museum inside the first Boeing 747-400 ever made.

The world-record holder for the longest bridge stretching continuously over water.

These ancient rock graves were featured on the cover of a Black Sabbath compilation album.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

One of the world’s longest pedestrian suspension bridges.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Crumbling pyramids and temple ruins stand within the shadow of this sacred butte.

The Arctic Archipelago is home to world's largest third order island: an island in a lake on an island in a lake on an island.

A regular looking rock with an unbelievable history.

This 13th-century monastery chiseled into the side of a mountain is equipped with a bridge that can be lifted to protect against raids.