Mysterious ancient boulder carved with petroglyphs in the mountains of Western North Carolina.

A pyramid in Central Europe of unknown origin.

Known as "The Hill of the Little Devils."

An apparition of Virgin Mary in Herzegovina.

One of the largest remaining ancient burial mounds of the 10th century.

Home of an evil witch famous within southern folklore.

The hallucinogenic center of the ancient world.

A pagan tradition of draping trees with rags eerily lives on.

This stone complex marks the urban center of a lost civilization.

Five mile wide circular ring of rock in the Russian Far East is a curious geological oddity.

A wellspring of natural Viagra found in Bosnia.

Europe's largest prehistoric mound – burial site of a legendary king?

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

Fascinating town where normal life interfaces with the occult.

The snowbirds here are circus sideshow performers.

Cat art as far as the eye can see.

An extraordinary "City of Caves" carved from solid stone.

A man has revenged his true love's betrayal through tears and stone genitalia.

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.

Tibetan-influenced mountain fortress in Northern Pakistan.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

Ecuador's largest Incan ruins show evidence of sophisticated irrigation and diplomacy among the ancient builders.

An auroral research program that superheats the ionosphere.

The king of U.S. high points towers over every other peak on the continent.