古代の宇宙人　【HISTORY】(吹替版）

Could the ancient Mayans have actually conspired with extraterrestrial visitors to plan the future-and even the end of the world?

The Maya created the most sophisticated calendar systems in the ancient world.

Who are the beings with big heads and giant eyes that seem to have been visiting our planet for millennia? Known by researchers as the "greys,".

Is it possible that celestial beings had a hand in the ancient world's floods, meteors and other catastrophic disasters?

NASA scientists, former astronauts and secret government files all point to the conclusion that there may have been contact with extraterrestrial life in the past.

Forensic evidence and local legends suggest that the mysterious and ancient ruins of Puma Punku in Peru may have been designed and even inhabited by a species of extraterrestrials.

People on every continent have claimed to see the footprints of Bigfoot. And ancient myths and legends speak of an ape-like giant. What if there is evidence to connect Bigfoot with an alien species?

Might an examination of Leonardo Da Vinci's masterful paintings, highly technical hand-drawn sketches and private journals reveal knowledge of otherworldly technology and extraterrestrial beings?

Is it possible that sightings of alien beings or UFOs may actually be evidence of time travel? And might ancient astronauts actually be time travelers from our future?

Could an alien race of beings have killed off the dinosaurs to make room for humankind?