An abandoned NSA listening post on Berlin's "Devil's Mountain."

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

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

An eerie, derelict amusement park in Berlin.

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

Where once there was a train station bathroom, there is now this German burger joint.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A Bulgarian monument to Russia's role in World War II is constantly being painted in pop culture protest.

"Holy Wisdom" overlooks the city that became its namesake.

An abandoned saucer-shaped monument in the Bulgarian mountains.

A magnificent, glittering building tucked into a tiny Bulgarian mountain town.

This 1000 year old relic-filled cave monastery and UNESCO World Heritage Site also hosts an amazing micro-miniature museum.

One of the world’s best microminiaturist, Nicolaï Siadristy displays his lifetime of tiny creations in this museum.

This unassuming museum's slogan translates to “there is a limit of sadness, anxiety has no limits."

This attraction was abandoned after the Chornobyl disaster.

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

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

Sculpture that doubles as a time capsule so that life can survive radiation outside Chernobyl.

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

The deepest metro station in the world.

The platform atop this verdant volcano was built with the help of a royal elephant.

The once and future home of New Zealand's famed Pink and White Terraces.

Taihape's claim to fame is a fictional Kiwi farmer wearing gumboots.

Hundreds of Buddhas in a re-discovered Indonesian temple.