One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

340-foot statue built to honour the Heroes of the Soviet Union.

This derelict superstructure was a very important warning system for the Soviet military.

This attraction was abandoned after the Chernobyl disaster.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

Metro station with a claim to rock n' roll fame.

Cold war icon and onetime "hole" in the iron curtain.

A fascinating insight into daily life in the Eastern Bloc.

The most visited, and possibly most controversial, museum in Germany.

A treehouse assailed by the elements and the government, now gone.

A museum dedicated to the exploring past, present, and future innovations.

One of the most controversial statues in Romania is an emperor with no clothes.

This snug medieval lane is one of the narrowest streets in the world.

Packed to the ceiling with antique taxidermy and hunting arms.

A muddy alien landscape that is home to rare species of exotic plants.

The bust of Romania’s most notorious ruler, Vlad Dracula aka "Vlad the Impaler," keeps watch over the ruins of his medieval court.

No one knows who built this strange cave of worship or exactly why.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

These curious caverns have been home to mushrooms, gangsters, and disco.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

Hub of Scandinavian culture in a Minneapolis deli.