This attraction was abandoned after the Chernobyl disaster.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

Caves famous for the dragon-slaying saint who lived there.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This abandoned Slovenian military barracks has become a punky-political art squat.

An otherworldly alpine pasture with its own unique microculture that recalls Middle Earth.

The 700-year-old fortress was the site of Count Orlok's castle in "Nosferatu."

A perfectly preserved hill village where the buildings are painted like white lace.

The bizarre rocks of Đavolja Varoš are the result of natural erosion.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

Nightmarish example of the unintended consequences of weapons testing.

Gigantic natural towers in a Russian plateau.

Unusual, mushroom-like rock formations caused by weathering and water erosion, set to disappear, according to geologists.

A dormant lightning machine equal to all the power in Russia.

A remote forest of stone pillars along the Lena river.

The world's second-largest excavated hole.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

This ancient village and its adjoining cemetery have a beautiful history of death and remembrance.

Gigantic Romanian salt mines used to heal respiratory conditions.

The Natural History Museum that time forgot.