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Ancient astronaut theorists have long proposed that extraterrestrials played a pivotal role in human history, and some believe they continue to keep a careful watch over the progress of mankind.

Ancient Aliens

The Alien Agenda

Infrared satellite technology detects pyramids hidden underneath the sand in Egypt and airborne laser sensors discover long-lost pyramids beneath the jungles of Central America; recent excavations reveal fascinating new facts about pyramids.

Hidden Pyramids

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HISTORY VAULT

UnexplJoin top investigators as they seek to uncover the truth behind some of the world’s greatest mysteries and cover-ups

UnXplained Zone

Examining whether extraterrestrial beings helped save the nation during the Civil War; Abraham Lincoln experiences strange visions and premonitions; soldiers at Gettysburg see a ghostly image of George Washington.

Aliens and the Civil War

New evidence suggests that many aspects in the mythical stories of a deluge sent by the gods to engulf the world may actually be true.

The Great Flood

Messages embedded in sacred religious texts, as well as in the design and location of ancient monuments that may reveal the purpose behind human existence.

Alien Messages

Taking a look at incredible stories of the dead rising from their graves; mummies traveling into the afterlife; people on the brink of death mixing with deceased relatives in a celestial netherworld.

Alien Resurrections

Cultures all over the world have practiced complex techniques to preserve the human body after death; ancient Egyptians believed mummification ensured entrance into the next life; Buddhist monks practiced self-mummification.

Secrets of the Mummies

Many brilliant minds believed they did not possess genius, but rather genius possessed them, like a spirit.

The Genius Factor

Exploring the theory that mankind's technological savvy comes from the work of extraterrestrials that watch Earth from outer space; inside the Inca legend, The Book of Enoch, that describes the Watchers descending to Earth to aid our advancement.

Aliens Among Us

The Great Sphinx in Giza defies explanation, pre-dates the earliest known civilizations and may conceal the secrets of humanities very origins.

Mysteries of the Sphinx

Throughout the course of human history, some caves have been considered sacred places for spiritual encounter and enlightenment, while others have been feared as true portals to purgatory.

Forbidden Caves

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Texts, archaeology and legend contain evidence of past human-extraterrestrial contact.

S9 E1 | Forbidden Caves