Take a hike to this unique rock formation formed by lava flows.

This Hungarian stilt village is built in a lake that never freezes over due to the power plant that that uses it as a cooling pond.

This massive underground salt mine now holds a sci-fi theme park in its depths.

These natural cliffs look like they are a part of an old castle complex.

An unfinished complex built for children from around the world sits abandoned on the Black Sea coastline.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

The now-abandoned Fascist summer colony served a dark purpose during World War II.

This former fascist summer camp was abandoned for decades.

The mental institution where Van Gogh created some of his most famous work now allows guests to walk in the artist's footsteps.

Considered the birthplace of the Copper Age and Bronze Age, the river is tinted red from 5,000 years of mining.

Puzzles within puzzles hide a golden treasure in this hedge maze.

A trio of giant megalithic stones in the middle of a golf course.

This abandoned oil depot produces world's longest echo in a manmade structure.

The Guinness Record holder for largest hedge in the world is a verdant Scottish bulwark.

The discovery of this Neolithic settlement, which contained a Stone Age "cathedral," threw archaeologists for a loop.

The ruins of a medieval seminary some say is the oldest university site in Scotland.

This Birnam-based garden honors the legacy of 19th-century children’s book author Beatrix Potter.

These ruins are a hidden gem, complete with fantastic views over the cliff edge.

A historic cave in Scotland once served as a hiding place for a famous Covenanter.

An optical Illusion once believed to be an electrical phenomenon.

What happened to the three lighthouse keepers who vanished from this place remains a mystery over a century later.

A whale's jawbone and a malfunctioning harpoon welcome you to the village of Bragar and its lore.

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

Where the sleeping monsters of Scotland's oil industry are left to rust.