Ancient Aliens

Ancient Aliens is counting down the world's top ten most mysterious sites, from the towering Moai statues of Easter Island to the enormous megalithic blocks of Stonehenge to the precision cut stones of Puma Punku. [HISTORY Channel]

An ancient figurine of a modern-day airplane. A primitive statue of a man in a spacesuit. Mysterious crystal skulls whose origins are entirely unknown.[HISTORY Channel]

We're counting down the world's top ten alien encounters, from the first reported abduction event to mass UFO sightings over New York's Hudson Valley to an incident in ancient Rome that changed the course of history.[HISTORY Channel]

In this extraordinary two-hour special, Shatner will bring thought-provoking questions to the leading experts of the show.[HISTORY Channel]

In this extraordinary two-hour special, Shatner will bring thought-provoking questions to the leading experts of the show. [HISTORY Channel]

Ancient Astronaut theorists investigate the mystery of the Human genome, in an attempt to determine if human beings are the product of an extraterrestrial experiment. [HISTORY Channel]

In the 20th century, pioneering scientists, journalists and investigators defied convention and began documenting UFOs.[HISTORY Channel]

Archaeologists have discovered that many ancient sites were built with an acoustic purpose, and often resonate at a frequency that has a profound effect on the human brain. [HISTORY Channel]

It is humankind's most profound achievement: blasting off into the stars. But is it possible that our voyages into the cosmos are really a return to our true origins? [HISTORY Channel]

Mount Shasta in northern California is known as a hotbed of strange events, from Big Foot sightings to UFO encounters to hikers vanishing without a trace. [HISTORY Channel]

A recently discovered 'lost city' in Peru that has upended the historical timeline of South America, revealing that civilization emerged here thousands of years earlier than previously thought.[HISTORY Channel]