Abandoned castle was once a grand example of Russian privilege, built exclusively to win a frivolous bet between noblemen.

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

A burnt-out motel with priceless Native American artwork in the basement, redeveloped into apartments.

This collection of reclaimed landmines acts as both an exhibition of their deadly history and as a shelter for children affected by them.

A European-style bath house in Chicago.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

Seller of surplus nuclear research materials.

A futuristic temple of light uses prisms and rainbows to create an atmosphere of peace.

The remains of a religious colony, its amusement park, zoo, and baseball empire.

A six-story-tall golden pyramid, surrounded by a moat.

An extravagant monument to an extravagantly unpopular Emperor.

Vietnam's feral abandoned water park offers access to a post-apocalyptic funscape, now with fewer crocodiles.

A former French military respite turned jungle tourism hotspot.

Abandoned soda factory on a Cambodian roadside in a state of beautiful decay.

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

Housed in the university planetarium, the thousand-strong collection of tiny towelettes includes a used one from the hosts of Car Talk.

Charleston's historic city jail once held everyone from pirates to Civil War POWs.

Take a drunken tour inside the world's largest known geode.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Where the Model T was made and the assembly line was invented.

This abandoned school has had many lives since the early 1900s, and all of them doomed.

This empty Detroit high school was too expensive to maintain or destroy.

Astounding collection of coin-operated games and automata.

The world's largest commercially available hamburger is complete with 15 pounds of lettuce, 30 pounds of bacon, and 36 pounds of cheese.