What On Earth

World's Deadliest Threats: Mysterious satellite images reveal China's hidden terror camps and provide access to America's top secret apocalypse pyramid.

Monsters of Diamond Desert: Satellites capture unusual images including markings in the desert, while a strange symbol could be a portal into a lost South American civilisation.

North Korea Death Star: Satellites capture startling images of a structure in North Korea that may be sinister evidence of a looming nuclear threat.

Aliens of the Infinity War: Are unusual patterns in an English field really an alien message? And why is there a secret military facility in the Nevada desert?

The Cave to Hell: Discover images of an Iceland cave that could hold alien secrets, military structures in the Utah desert and a bloody stain in the sands of Saudi Arabia.

Terror of the Ice Snake: Discover a trail of moving objects in the ice of Antarctica, evidence of one of Joseph Stalin's most insane schemes and a code in the Sonoran Desert.

Curse of Genghis Khan: A strange structure discovered in the Gobi Desert could reveal the whereabouts of lost treasure - changing everything we know about Genghis Khan.

The Romeo Project: Gabrielle Kleim was one of many women working in West Germany targeted by 'Romeo Spies' and was duped into sharing information for love.

The King at Roswell: When a strange plane is discovered near the sight of the Roswell UFO incident, experts wonder if the aircraft has Nazi or extraterrestrial origins.

Treasures of Monster Graveyard: At a mysterious site in the Gobi Desert, experts discover a monster graveyard - a groundbreaking find containing treasures of alien beasts.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.

Satellites orbiting our planet have put more eyes on Earth's vast, unexplored areas of land and sea - revealing baffling new anomalies.