When investigators spot strange anomalies in the Amazon jungle, the discovery stokes rumors of a long-lost Nazi base in the Americas. Ancient circle in Cornwall Britain that predate King Arthur and tin mines in Britain. NASA alien landscape in Arizona US.

When satellite images spot a strange white substance in the land of the Aztecs, experts investigate the site for extraterrestrial connections; what they find could explain the rise of one of the world's greatest civilizations.

New evidence reveals a Viking portal to their spiritual realm.

Satellite images capture bizarre structures in the remote and inhospitable swamp lands of Louisiana; experts investigate a forgotten war-torn fortress with a mysterious connection to the sinking ruins of a classified military installation.

Satellite images reveal a long-lost village buried in a dense forest; archaeologists investigate and uncover a mysterious grave site with the remains of decapitated skeletons and possible evidence of vampire burials.

Satellites capture evidence of a mysterious structure in a remote and rocky area of Hawaii, and when experts investigate, what they find could point to human sacrifices and the wrath of a shape-shifting god.

When a gigantic ship emerges from the sands of a strange island, experts investigate; what they find reveals evidence of a horrific Viking massacre.

When experts spot what appears to be an abandoned city in the Caspian Sea, they investigate declassified Cold War evidence to reveal an Atlantis-like city built by the Soviets; what they find exposes its long-lost secrets.

Satellite images reveal a mysterious pattern of six perfect circles hidden in the desert landscape of New Mexico; experts investigate and uncover evidence of catastrophic military testing deliberately erased from history.