One of the most puzzling and greatest mysteries of our world that has baffled archaeologists and ‘ancient astronaut theorists’ alike are the Inca ruins known as Machu Picchu or ‘old mountain’ in Quechua, an ancient language of South America.
Ancient astronaut theorists, among others, believe that the citadel could not have been built with the limited technology of the time: made “of cut stone fit together without mortar so tightly that its cracks still can’t be penetrated by a knife blade” (ref. National Geographic).
Was it built by extraterrestrials (aliens) or perhaps with the help of extraterrestrials? Ancient astronaut theorists say ‘yes’ (ref. The History Channel). Regardless of who built it, what was its purpose? A great location for kite flying? No one seems to know! One clue is its wondrous location, overlooking the Urubamba river and valley hundreds of feet below.