Mysteries From Above

Ghost Towns: Drones reveal what is left of Henry Ford's suburb in the Amazon, while clues to what killed a once-vibrant Pennsylvania mining town is discovered. (S1, ep 7)

Out of Place: Discover strange aquatic mammals populating a river in Columbia, a ship marooned in sand along Namibia's Skeleton Coast and a Boeing 727 in a pine forest. (S2, ep 1)

Desert Mysteries: Look down over a constant inferno in Turkmenistan, mysterious circles in the Namibian desert and secret electric blue ponds in Utah. (S1, ep 8)

Mysteries of the Misplaced: Fly over an imperial pyramid in the Netherlands, a metal sphere in Russia, a lion in England and a swath in an Austrian forest. (S3, ep 3)

Disaster From Above: Malta loses a natural treasure, an enormous fiery vortex is seen in California and a mysterious radioactive hotspot is found near Chernobyl. (S2, ep 2)

Lost at Sea: Witness a remote island linked to one of the world's most famous aviation mysteries and explore thousands of shipwrecks in the Bermuda Triangle. (S1, ep 9)

Expect the Unexpected: Explore a long-forgotten network of Native American earthworks, a battlefield mystery in Belgium and a mysterious blood red lake on a Greek island. (S2, ep 3)

The Planet Unlocked: The Pyramids of Giza could be a map of the stars. First responders bring hope during Hurricane Katrina. An Indonesian volcano erupts in a shade of blue. (S1, ep 10)

Ocean Mysteries: Discover an underwater find from a violent past, a mysterious concrete 'ghost island' and never-before-seen tracks along the seabed. (S2, ep 4)