The 3.8 billion-year-old rock proves that tectonic plates may have been shifting longer than we thought.

Legends surround this jagged rock formation in the New Mexico desert.

Mysterious craters may have been home to an ancient cult.

The abandoned village of Skarð aptly illustrates the idiom "Don't put all your eggs in one basket."

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

British Empire's last territorial expansion, claimed by four countries.

At high tide, the base of the lighthouse covers practically every inch of the island.

Green labyrinth formed by a karstic maze hidden in a preserved oak forest.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

Local legends say that fairies used to dance in the moonlight here and invite handsome young men into their grottoes.

The world's tallest bridge is also possibly the most elegant.

The alpine falls where Sherlock Holmes apparently met his demise can actually be visited.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

This stunning natural double arch, the largest in the Alps, went undiscovered until 2005.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

A French valley with forests so lush it was nicknamed "the Small Amazonia of the Pyrenees."

A striking 12th-century-style castle built on the edge of a cliff.

Berlin's beloved bear is immortalized at the Museum für Naturkunde.

The great Danube river starts here.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

The oldest trees in Northern Germany.

Part ski resort, part modern art space, this lodge brings giant metal spiders and bloody doors to the Austrian Alps.