A nuclear power plant abandoned along with an international allegience.

The beauty of urban decay, hiding some dark secrets.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

Bad farming practices caused this unnatural natural wonder.

The abandoned bathhouse is all that remains of the hot springs considered Florida's original tourist attraction.

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

This isolated airport in the middle of the Everglades sees more alligators than planes.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.

A lone gunner's station is all that remains of a replica Spanish Fort in Florida.

Next to the Malaysian Prime Minister’s office stands this rose-colored mosque.

Underneath one of the region's most historic roads lies the home of Plato's successor.

This apartment is a true time capsule of local life in Bulgaria during the Soviet regime.

This bed and breakfast is steeped in history and offers guests a unique way to experience nature—glass igloos on a frozen lake.

A former customs station on the border of Germany and the Netherlands.

This remarkable parking garage in Darmstadt has lived several lives and still contains remnants of its World War I past.

Atop this former dutch railway office sits an interstellar work of art.

The former headquarters of history's oldest megacorporation.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

The location of the world's first telescope demonstration.

After the construction of a nearby cathedral obstructed the view, the oldest belfry in Belgium was more than doubled in height.

One of London's oldest houses contains a mixture of both old and modern features.

This historic castle was already in ruins by the 13th century.

Amidst towering office buildings, a local pub lives inside Sheffield’s oldest surviving domestic building.