The social hall of this former factory is a Communist-era time capsule.

A collection of Lenin busts and other Soviet Era statues sit idly behind the Semipalatinsk Hotel.

At first glance, this area seems like just another city park, but the lush landscape hides a dark past.

This unique wooden mosque resembling a Chinese pagoda was said to be built without the use of nails.

The largest park in Lviv is surrounded by a network of disused rail tracks.

One of the most easily accessible examples of the rare 1960s UFO houses.

A forgotten monument to Yugoslavian freedom.

India's first open-air public art district sits in the heart of the country's capital.

A magical expanse of colorful street murals lies hidden within the quiet neighborhood.

An abandoned desert hamlet swallowed up by sand.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

Last remaining nuclear missile base in Ukraine.

This abandoned Belgian fortress is purposefully being left to nature.

This ghost town in Belgium will lose its street art when it ceases to exist.

Hidden amid the tropical forest in the Caribbean Sea are the decaying ruins of the Cocaine King's luxurious island party home.

The abandoned remains of a once popular zoo, and the grave of the last known Tasmanian Tiger.

The remnants of an archaeological camp stand within Tikal National Park.

An enormous, 30-story-deep hole in the middle of Guatemala City.

A bronze sculpture of Lenin’s likeness outside Havana surrounded by 12 human figures in solidarity with the Bolshevik Revolution.

A nuclear power plant abandoned along with an international allegience.

A colorful narrow alley in Cuba is full of street art and sculptures made of found objects.

Life-sized painted illusions let pedestrians blend in with the street art.

Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

During the rainy season, this temple is almost entirely submerged, accessible only by boat.