This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

This huge metal monument is slowly being stripped to its concrete skeleton.

Yugoslavia's biggest underground airport lies in ruins.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

A mountain pass in Bulgaria's Balkan Mountains was the site of four historic battles.

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.

The deepest metro station in the world.

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

An abandoned saucer-shaped monument in the Bulgarian mountains.

A 20-meter (65-foot) robot towers over Tokyo Bay.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

The original "capsule building" is a masterpiece of Metabolist architecture.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

A magical place that lets you play in and explore the world of Studio Ghibli.

This little replica of Lady Liberty provides a bit of NYC in a Japanese city.

These Japanese ruins have been brought back to life with elaborately recreated buildings.

A giant robo-cockroach building devours Tokyo.

A Japanese corporation has turned this small island town into living modern art gallery.