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. Some believe that these tombs were designed with the help of extraterrestrials.

For thousands of years, human civilization has been guided by the words and deeds of ancient prophets. But just who-or what-were these prophets communicating with?

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

Alien abductions are not a new phenomenon. The Bible is filled with stories of abductions by aliens. Is it possible that extraterrestrials have been abducting humans for thousands of years?

A young man's spiritual journey. A controversial bestseller. And a scientific theory that threatened to change the world. Just what are the facts behind Erich von D niken and Ancient Astronaut theory?

The gods worshipped by the Norse Vikings-Odin, Frey and Thor among them-were fearsome and mysterious, but were these beings truly divine, or is there, perhaps, an extraterrestrial connection?

What compelled ancient man to move colossal stones and to build remarkably similar stone monuments all around the world? Could extraterrestrials have instructed them to build these monoliths?

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.