Massive series of 45 caves and over 51,000 sculptures carved from cliffsides in China.

Mysterious rocks that ring musically when struck.

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

Over the dunes of the Empty Quarter, the mysterious music of the desert.

A unique underground structure dating back to the 1st century BC.

Walk through living pictures and music in the Cathedral of Images.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

The most alien-looking place on Earth.

Featuring Zürich's only authentic 14th-century plague doctor's uniform!

What is the Thing?

A mysterious light in the wood, rumoured to be the the ghost of a railroad brakeman.

An auroral research program that superheats the ionosphere.

A museum dedicated to the alleged Roswell Incident.

The rocks in this arid basin leave trails of movement behind them.

Landscape of bizarrely shaped desert mountains and innumerable rock carvings.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

Research station devoted to mysterious floating lights seen in a Norwegian valley.

Real bones which are said to have belonged to a Polish dragon.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

Rising from the sea like a stone monster.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

A gallery of underwater art that can be visited by man and fish alike.

Where cemeteries are carved into the side of cliffs and infants are buried in the hollows of trees.

The Voodoo Superstore of the world.