Ancient Aliens Season 2 Epi 4 : Underground Aliens

If extraterrestrials influenced human history, can evidence of their existence be found in hidden tunnels and caverns around the world? Could a cave in Ecuador contain metallic books inscribed with secrets of alien technology? Was an ancient underground city in Turkey built with alien help... or as a refuge from an alien attack?

Let's find out more in Episode 4 of the Ancient Aliens Season 2 TV Series on the History Channel ...

Rumors of the U.S. military working alongside aliens in a secret base inside a mesa in New Mexico continue to swirl, Native American legends mention strange inner-Earth beings, and recent archaeological discoveries in the Yucatan may point to an extraterrestrial reality behind.

Reference : Ancient Aliens ~ The History Channel

Related Posts :

• UFO Disclosure : William Pawelec Interviewed by CSETI
• Secrets Of The Maya Underworld : A BBC Documentary
• Ancient Aliens Season 2 Epi 3 : Underwater Worlds !
• Graham Hancock : Underworld Documentary
• Deep Sea UFOs : Underwater Mysteries
• The Hollow Earth Documentary with Brooks Agnew
• Ancient Aliens Season 2 Epi 2 : Gods and Aliens
• UFO Shuts Down Airport in China