This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

Budapest's Communist-era statues, banished to the suburbs.

A marvel of technology a century ago, this disused power station now offers a lovely glimpse into the industrial design of the past.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Roman-era ships unearthed...

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

The underground sanctuary of a mysterious ancient cult.

The glowing blue Nymphaeum of Emperor Tiberius.

Ruins of a 10th century church tucked away deep in a botanical garden.

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The 1936 Summer Olympics site is a crumbling remnant of sportsmanship and a history its host country would like to forget.

A petite castle folly in the English countryside.

Nazca pilgrimage site covering 370 acres is a popular stop for archeologists and looters.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Beijing's version of Disneyland, completely abandoned, mostly destroyed.

Yugoslavia's biggest underground airport lies in ruins.

Rusting ships sit in a desert where a sea used to be.

On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

Abandoned anti-ballistic missile base.

Abandoned Air Force base that has fallen into disrepair.