Episode list

Using drone operators and satellite imagery, enthusiasts find a vanished Neolithic structure in an Irish farmer's field, an ancient oasis in the remote reaches of a Chinese desert, a centuries old buried treasure in the UK and a dreaded predator makes nice in the Pacific Ocean. All of these events are discovered by accident.

A Nazi weapon designed to turn the tides of WWII in Northern France; a secret Russian military tower in the shadow of the Chernobyl disaster; a forgotten Australian tunnel rumored to hide a nuclear lab. And more..

Over a hundred massive concrete arrows scattered across America; a giant chalk figure with an oversized phallus on an English hillside; a mysterious hole in the middle of a lake in Southern California.

A Turkish drought reveals a long-lost ancient Basilica and its secrets; a church spire punches through the surface of a toxic sludge in Romania; the hull of a massive ship in the North Sea answers decades old questions.

Nubian pyramids reveal the rise of female power in Ancient Kush; a shocking satellite image uncovers secrets of an ancient ancestral Puebloan site in New Mexico.

Strange markings in the remote region of Northern Finland; drones find a Manhattan-size mystery in the depths of a Vietnamese cave; secrets are no longer hidden in the Antarctic; a lost sky-high world in Mozambique gets a visit from above.

Drones reveal what's left of Henry Ford's American suburb in the Brazilian jungle; clues to what killed a once-vibrant Pennsylvania mining town; an aerial glimpse of New York's forgotten ghost town; an Italian Renaissance reduced to dust.

From above, a constant inferno in Turkmenistan, mysterious circles in the Namibian desert, slithering stones across Death Valley, and the secret of Utah's electric blue ponds.

A remote island linked to one of the world's most famous aviation mysteries; thousands of shipwrecks in the Bermuda triangle; a history lost and found in the South Pacific.

How the pyramids of Giza could be a giant map of the stars. Plus, how first responders brought hope to the survivors of Hurricane Katrina