Experts Investigate a mysterious formation in the Antartic ice.

Experts investigate mysterious formations on a Mediteranian Island.

New data from NASA satellites reveal a sunken lost continent in the Indian Ocean.

A forbidden island points to a strange South American town that locals claim was the home of Adolf Hitler.

Experts investigate an eye shaped lake containing a mysterious floating island.

Experts question the purpose of an artificially created island constructed by the military.

A deadly plague eats away at a Rhode Island forest.

At the height of the cold war, the CIA is confounded by a powerful new weapon dubbed the Caspian Sea Monster.

An eerie green vortex of death swirls in the Baltic sea.

Experts investigate a river surrounded by death.

Experts investigate a seemingly alien lake, that may reveal secrets about Martian life.

A lightning bolt scars the Australian outback.

A ghost ship appears on a California beach.

The search for Nazi treasure leads to a secret underground bunker.

A military satellite witnesses the disappearance of a Russian airliner over an ISIS danger zone.

Investigators uncover an ancient forge from the dark ages.

Satellite images reveal a strange hole in Antarctica. After scientists rule out whirlpools and sinkholes, they have to look back in time to find the answer.

Satellite photos show a strange circle beneath the ice of an ancient lake. Further analysis shows that these mysterious rings appear each year. What are they?

Scientists are baffled when a seemingly huge tsunami headed straight for Hong Kong suddenly disappears in the water.

An image taken by GOME shows a strange, pulsing force spreading across North America. What on Earth is it?

A commercial satellite imager spots something strange in the middle of a vast desert. It looks like an airport runway, but there are no planes. No government claims ownership of this strange place.

The search for Nazi treasure leads to a secret underground bunker.

A satellite captures an image that uncovers the entrance to an underground complex. What is being built there?

Experts investigate a river surrounded by death.

Ghost lakes have existed for millions of years, but they just recently started showing themselves. Geophysicist Helen Fricker explains how scientists are moving forward with this discovery.

A mysterious shape in the water leads people to believe a giant monster is roaming Loch Ness. Is that really what’s going on though?

Sandy Island seems to have disappeared, and scientists aren't quite sure why. Was there some sort of elaborate government experiment?

A military analyst notices a familiar military plane in the middle of a Chinese city. The question is, is the plane real or just a model?

For years the hottest place on Earth ever recorded was a city in Libya. When researchers took a second look at this information, they realized the measurement was wrong.

Satellite images capture a distinct glowing object beneath the ocean's surface.

After a ginormous earthquake in Baja California, scientists use satellites to discover which fault ruptured. The problem is, the new fault line they find doesn’t make sense.

When you think of deserts, you don't typically think of bright, jewel tones. Why are these massive pools of color here?