This picturesque monastery at the base of a cliff is a peaceful oasis open to all visitors.

This abandoned-looking amusement park is frighteningly open for business.

North Korea's massive "hotel of doom."

An English brewery transported to North Korea.

A relic of the Cold War tucked away in the forested hills above Bratislava.

This building featuring Brutalist architecture has a rich media production history.

Abandoned ships along a deserted beach feel like the set of a post-apocalyptic thriller.

The decaying remains of a once-luxurious Soviet spa town.

This abandoned five-star hotel is now a five-star urban exploration destination.

Walrus skulls and narwhal bones were found here while excavating a 900-year old church.

Thanks to its heroic service during WWII this Soviet castle has been turned into a monument towered over by a brutalist titan.

In northeastern Poland, the ruins of a massive granary overlook the Narew River.

This tower in a small Polish village uses the power of a sacred bell to ward off mischievous weather spirits.

A haunting deserted hotel is a favorite with artists and photographers.

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

The oldest church in Iceland is one of the few to feature ornate decoration.

Where a brain, a beauty, a jock, a rebel, and a recluse met one Saturday and changed their lives forever.

The inverted pyramid design of this station stands out amid Bratislava's urban landscape.

This abandoned office building is a lasting example of Soviet-era architecture.

Propped high atop the peak of Mount Gamsutlmeer, this abandoned village is one of the oldest settlements in the region.

A burial vault located under Tiber Island in the middle of the Italian capital.

More gold than anywhere else, ever.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

Nearly three tons of weapons from the Vietnam War still remain in this small, hidden museum.