Mysteries from Above

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.

Military secrets are uncovered from the air: a Nazi weapon in northern France that would decide World War II, a secret Russian military tower in the shadow of the Chernobyl disaster, a forgotten Australian tunnel rumored to be a nuclear laboratory, and something shocking hidden beneath buried in the infamous Alcatraz prison in San Francisco.

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.

Satellite images of a crater in Turkmenistan are puzzling. Drones reveal perfect circles in the Namibian desert. A bird's eye view reveals the mystery of Death Valley's self-moving rocks and an astronaut snapped a remarkable photo of Utah's strange blue ponds. It is also about a code from the Second World War that was decrypted in a special way.

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.

Viewed from above, the world-famous Pyramids of Giza could be a kind of star map. It also shows how first responders gave hope to survivors of Hurricane Katrina from the sky. Also very impressive is an Indonesian volcano that burns in a bright blue. And this time, a bird's eye view also reveals certain forgotten joys of America's recent past.