The ancient Maya were master stonemasons, creating intricate temples and pyramids that have baffled archaeologists for centuries. Could aliens have helped them build these massive structures? Source

Researchers believe extraterrestrial beings took part in building the great pyramids. See more in this clip from Nostradamus Effect. #NostradamusEffect Subscribe for more from Nostradamus Effect and other great The HISTORY Channel shows: http://histv.co/SubscribeHistoryYT Watch more ...

Top 10 Ancient Sites That Might Be Built By Aliens Subscribe To Most Amazing Top 10: http://bit.ly/2Ibyk6i Most Recent Videos: https://www.youtube.com/watch?v=Pj2rni0BfKo&list=UUBINYCmwE29fBXCpUI8DgTA We still have very little evidence of alien life on our planet, however, there some historical ...