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What on Earth?
A strange circular forest next to a notorious cannibal site. When an eerie crater is spotted in Siberia, experts uncover if it could be evidence of Nikola Tesla's doomsday device. Cutting-edge tech helps experts answer these sinister mysteries from space.
Evidence of a mysterious 5,000-year-old structure suddenly appears in Ireland. A top-secret machine that can see back in time. A satanic pentagram in the snow that points to witchcraft in the New World.
A site that could be the Garden of Eden hides a deadly secret. When a gateway to hell suddenly opens, experts investigate where it leads. A mysterious shipwreck could be an infamous Soviet KGB pirate ship.
Hundreds of shipwrecks in the middle of a desert in Africa. A ghost town where hundreds of its inhabitants have mysteriously died. Something strange in North Korea. Cutting-edge tech helps experts answer these sinister mysteries from space.
New discoveries from space give experts new clues in the hunt for Jack the Ripper. When a strange object crash-lands in Antarctica, experts speculate it could be an alien visitor. Cutting-edge tech helps experts answer these sinister mysteries from space.
A fleet of sunken ships points to ghosts, cannibals, and bloodshed in early America. Strange Arctic holes that NASA can't explain. Near Area 51, mysterious alien structures straight out of Star Wars. Cutting-edge technology helps experts investigate.
Zombie reindeer haunting the mountains of Norway. Strange circles in the sand by a secret US military base. A gigantic streak in the Arctic pointing towards alien life. Cutting-edge technology helps experts answer these sinister mysteries from space.
A satanic symbol points to an army of the dead in Siberia. A massive stone giant in a remote desert. Evidence of a Russian doomsday device right on America's doorstep. Cutting-edge technology helps experts answer these sinister mysteries from space.
Alien monoliths haunt the coast of England. An obliterated jungle points to a brutal narco gold rush. Evidence of a strange blood-red creature emerges from the deep on Christmas Island. A terrifying wall of ice avalanches in western Tibet. Cutting-edge technology helps experts answer these sinister mysteries from space.
Something strange in the Himalayas could be evidence of a top-secret CIA program to turn monks into killer agents, and cutting-edge science helps experts investigate the truth behind this mysterious anomaly.
New discoveries uncover clues that could reveal the truth behind some of the Bible's greatest mysteries, and experts investigate if this evidence will lead them to the Ark of the Covenant, the Garden of Eden, and the lost city of Babylon.
New discoveries uncover clues that could reveal the truth behind some of the Bible's greatest mysteries, and experts investigate if this evidence will lead them to the Ark of the Covenant, the Garden of Eden, and the lost city of Babylon.
This season we are exploring some satellite image mysteries in even greater detail, traveling to Argentina to examine a strange settlement locals say was the home of Adolf Hitler and Eva Braun after escaping from Berlin, to a series of bizarre mounds in the wilds of Transylvania that legend claims is connected to the area's most infamous resident, Vlad the Impaler, Dracula himself.
