When a perfect triangle is found in the middle of a unpopulated portion of Australia, experts begin to wonder whether or not the design is man made.

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?

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

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

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

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

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.

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.

Satellite images reveal enormous spirals in Peru. Some researchers say they are too perfect and too huge to be man made.

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.

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.

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

Who drew this over 2 mile long humanoid figure into the Australian terrain?

Satellite images revealed hundreds of black holes in the middle of the desert near ancient burial grounds. Is grave robbing still a thing in modern day or were these holes caused by something else?

Satellites spotted a strange, long streak across the desert in Bolivia. At first, scientists thought it may be a skid mark from a meteor.

This isn’t an optical illusion. This lake on Middle Island is actually pink! You can thank the algae in the lake for the gorgeous color.

In the 1950’s this strange shape was spotted in Cuba. No, it’s not a Star of David.

Analysis reveled that they were probably made around 800 bce.

This rubber duck is the largest in the world. The creator and designer of the Rubber Duck sculpture is Florentijn Hofman. We’re DEFINITELY going to need a bigger bath…

An Italian astronaut aboard the International Space Station spotted these strange lights in the middle of the ocean. What could they be?

A container ship traveling from China to the United States accidentally lost 12 containers. One of them held thousands of duck toys.

Drone and satellite images revealed an enormous garden on top of a skyscraper, complete with a vineyard and swimming pool.

You may know of Area 51... but can you identify this top secret spot in Australia?

But did it really go missing?

Some of these scratches are 10 or more meters long.

13-year-old William Gadoury is like a young Indiana Jones.

Located in Argentina, this huge design was picked up in satellite images. Some people initially thought it was a golf course. Problem is there’s too many holes.

Thanks to GPS, they know what land is theirs.. even down to the inch.

Even stranger, it disappeared less than a year later.

This romantic road carved into a sheer rock face in the Rhone Valley in France was an engineering marvel that was once a wild success. What caused it to be abandoned today?

Built in the 1940’s the Goat Canyon Trestle Bridge was the tallest wooden railway system in the world.

Two miles inside a mountain in Croatia lies the remains of a massive, secret Cold War airbase built to withstand a nuclear war.