No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

His body was found mysteriously preserved in a Swedish mine over 40 years after his initial disappearance.

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

The oldest surviving mosque in the UAE has mysterious origins and unusual architecture.

This giant geoglyph of mysterious origins is now the site of neo-pagan rituals.

This unusual 7th-century Frankish seal offers more questions than answers about its past.

A circle of stones on a hilltop in Peru’s high jungle, aligned with the winter solstice and largely ignored by archaeologists.

Some locals believe the fabled lost gold of General Yamashida is hiding somewhere beneath the city.

This small and unknown museum recounts the life of Mirabai, a remarkable mystic saint of the 16th century.

Called the "Armenian Stonehenge," this ring of menhirs pierced with holes may be a prehistoric astronomical observatory.

The mysterious 855-foot zigzagging stone wall has been baffling people for centuries.

This grave in a ghost town cemetery marks the death of a witch on a day that never happened.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

These enlarged egg sculptures represent the native birds of eastern Iceland.

Site of the largest volcanic eruption in the last 25 million years, one which may have nearly wiped out humanity altogether.

Mysterious craters may have been home to an ancient cult.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Launch site for nuclear war against Western Europe.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Destroyed by flood waters, prison now serves as a training ground for armed forces.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Bits and pieces from the ill-fated Donner Party's winter cabins.

The rusted remains of a victim of Hurricane Ike.