The pyramids of Giza could be a giant map of the stars; first responders bring hope to the survivors of Hurricane Katrina; an Indonesian volcano burns a shade of blue; a bird's-eye view reveals the forgotten pleasures of America's recent past.

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.

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.

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.

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.

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.

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.

Aerial views offer a fresh perspective on massive concrete arrows scattered across America. Plus, a giant chalk figure on an English hillside and a mysterious hole in the middle of a lake in Southern California.

An array of mysterious phenomena, as seen from above. These include a Nazi weapon in Northern France and a Russian military tower near Chernobyl.

Cameras capture the world from fresh and exhilarating perspectives. Using drones and satellite imagery, this instalment discovers a vanished Neolithic structure in an Irish field, an oasis in a Chinese desert and buried treasure in the UK.