In the middle of a remote desert town is a surprisingly opulent hotel.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

Houses are tucked between, on, and underneath giant boulders.

A frozen oasis lies beneath the scorching New Mexico desert.

The Hveragerði fissure runs through this unassuming shopping center.

Tracing a path of more than four miles around a frozen lake, this is the longest skate trail in the United States.

This restaurant features Native American foods from across the country.

Indents in the pavement are all that remain from a grisly death machine in Paris.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

A small house sits between two huge rocks, with its back to the sea.

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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

An abandoned castle owned and ignored by Masons carries a cursed history.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

Mine your own precious stones.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

This British museum hopes to take the taboo out of poo.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

The remains of the medieval wall that once surrounded Paris with ties to the construction of the Louvre.

Live long and prosper in Tennessee.