Accidental Discoveries. Using the view from above, drone pilots and satellite imagery specialists are uncovering a vanished Neolithic structure in an Irish farmer's field, an ancient oasis in the far reaches of the Chinese desert, centuries-old buried treasure in Britain and a fearsome predator roaming the Pacific Ocean has made cozy and all just by accident.

Military Mysteries: Discover an array of mysterious phenomena seen from above, including a Nazi weapon in Northern France and a Russian military tower near Chernobyl

In Plain Sight: Discover over a hundred massive concrete arrows scattered across America, a giant chalk figure with an oversized phallus on an English hillside and a mysterious hole in the middle of a lake in Southern California

Submerged: 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 and the hull of a massive ship in the North Sea answers decades old questions

Ancient Civilisations: Nubian pyramids reveal the rise of female power in Ancient Kush and 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.

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.

Aerial cameras reveal strange aquatic mammals populating a river in Columbia, a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast, a Boeing 727 jetliner hidden in a pine forest. Plus, a giant, unusual pattern is discovered in the Nevada desert.

Malta loses a natural treasure, an enormous fiery vortex is seen in California and a mysterious radioactive hotspot is found near Chernobyl.

Explore a long-forgotten network of Native American earthworks, a battlefield mystery in Belgium and a mysterious blood red lake on a Greek island.

Discover an underwater find from a violent past, a mysterious concrete 'ghost island' and never-before-seen tracks along the seabed.

Strange aquatic mammals populating a river in Colombia, a ship marooned in a sea of sand along Namibia's notorious Skeleton Coast, a Boeing 727 jetliner hidden in a pine forest, and a unusual pattern is discovered in the Nevada desert.

The view from above reveals; the skeletal remains of an enormous ancient reptile, a colossal head carved into the Badlands of Alberta, a giant footprint in the wilds of South Africa, and gigantic, mysterious Pentagram in Kazakhstan.

Cameras capture the world from fresh and exhilarating perspectives. The planet's most puzzling structures are revealed, including ancient pathways criss-crossing Easter Island, gigantic designs carved into Asia's Eastern Steppe, and a tall pyramid rising from Antarctica's icy landscape.

Visits to some of the most cavernous places on Earth, including Greenland's bizarre black holes, an ancient forbidden well in the Yemeni desert and a voluminous void in Antarctica.

Cameras capture the world from fresh and exhilarating perspectives. Drones explore strange geological occurrences, unique man-made structures, curious creatures and lost civilizations, revealing fascinating insights and never-before-seen footage.

Cameras capture evidence of ancient civilizations. Featuring a mysterious Norwegian mound, a pre-historic stone circle on the banks of the Tagus River and a lost city in the very cradle of civilization.

Spot a giant glacier on the red planet, let the milky seas off the coast of Java bathe your vision, ponder a huge hexagon floating above Saturn, and take a spin around a doughnut-shaped lake in Saskatchewan.

Explore strongholds abandoned by their architects. Look at a lost city in the Amazon jungle, see a desert fortress made by humanity's most notorious empire, explore a city of identical castles, and examine a Greek isle's bloody history from the air.

Peek at landmarks in places where they shouldn't be. Wing your way over an imperial pyramid in the Netherlands, a massive metal sphere in remote Russia, a lion shape carved into an English hillside, and a bare swath cut through an Austrian forest.M

Examine strange relics forgotten by time. Visit a perturbing circle of stone in the Golan Heights, a mountain of headless statues in Turkey, a castle left to crumble in the Saudi Arabian desert, and a time-worn secret in the wilds of Peru.

Confront objects that make no sense. Spot a spinning island in an Argentinian marsh, a colossal triangle stuck in the Arizona desert, mysterious multicoloured pools across northern Ethiopia, and a huge human figure hidden in the Australian outback.