Ghosts of France's colonial past.

Shipwrecks, ruins, and turtles are all that remain on this haunting Caribbean ghost island.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

World's oldest and largest space launch facility, once a secret missile testing site.

Remote, volcanic island that Darwin, Hooker, and the Royal Navy shaped into a thriving, artificial ecosystem.

An Italian hillside ghost town.

This once luxurious Catskills resort is now a haunting ruin.

This extraordinary geological oddity resembles human-made pavement.

The site of one of history's most indelible and horrific tragedies.

This star-shaped military outpost is now simply trying to protect itself from neglect.

A small storefront museum explores the history and myth of West Virginia's famous urban legend.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

A Saint Nicholas-themed ghost town in the Mojave desert.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

The beautiful baroque library of the Hapsburg empire.

A derelict bit of transportation infrastructure hidden in the woods.

Have fun at the world's first Buddhist waterslide park.

This former Nazi castle was built as a school to train what would have been the future of the Third Reich.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.