Ancient Aliens

For thousands of years, pyramids were the largest structures on Earth.

In 1980, three young military men were sent into a UK forest to investigate strange lights. They reportedly encountered a spacecraft of unknown origin. When one of the men touched it, he claims to have telepathically received a sequence of binary code.

Egyptian hieroglyphs depict the use of light bulbs in tombs and secret chambers.

Why were ancient civilizations around the world so focused on the Orion constellation? While scientists site many earthly connections.

Was Albert Einstein a genius? Or was he superhuman? Was his genius "of this world," or was it "otherworldly?" Is it possible, as Ancient Astronaut theorists believe?

Across the globe, archaeologists have uncovered ancient tombs filled with strange items and writings. Remarkable similarities have been found at each of the sites.

They were the messengers of divine knowledge and seers who shared visions of the future.

Erich von Daniken's landmark book, Chariots of the Gods, brought attention to the mysterious phenomena of the Nazca Lines.

In 1975, Travis Walton claims to have been abducted and taken aboard a space ship inhabited by extraterrestrial beings.

A young man's spiritual journey. A controversial bestseller. And a scientific theory that threatened to change the world.

They were teachers and destroyers. Mighty warriors who blazed across the skies in gleaming chariots and wielded magical weapons that could bring down mountains.

Massive stone structures that reach to the heavens... strange, giant figures buried deep in the Earth... and energy emitting spheres connected around the globe..

Series host and Ancient Astronaut theorist, Giorgio Tsoukalos, explores the mystery of the Nazca Lines found in the desert region of Southern Peru.

Giorgio Tsoukalos presents the fascinating story of Nikola Tesla, one of the most prolific inventors of the 20th century--and the man that actually electrified the world. Tesla is credited with shepherding mankind to a new industrial era.