A museum glorifying the life of Stalin, located in the city of his birth.

A castle perched precariously over the Crimean Sea.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

Abandoned Soviet base once stocked with short and medium range missiles pointed at western Europe.

Rare signs of the former Soviet Union in the Caribbean, though not where you'd expect them.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Peek through a transparent pyramid and drink in the mountain made of books.

Surreal riveted sea forts once protected the Kent shores from German attack.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

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

An abandoned saucer-shaped monument in the Bulgarian mountains.

A picture-perfect town, perfect for blowing up.

The remains of diamond fever taken over by the desert.

This attraction was abandoned after the Chernobyl disaster.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

Once the most densely populated place in the world, this island is now a ghost town.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Northern Ireland's Brobdingnagian stepping stones.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

A seemingly endless landscape of pure salt stretches far across Bolivia.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

The legendary building that needed ghostly approval before being built.

The fairy tale castle of the "fairy-tale king."