Ancient Civilizations S04E07 The Layers of Machu Picchu

When was Machu Picchu built, and could its megalithic foundations offer evidence of a pre-diluvian connection? With over 200 structures uncovered and more still being discovered, evidence at Machu Picchu is pointing to contrasting time periods with architects of differing sophistications. Challenging researchers since its public reveal by Hiram Bingham in 1911, Machu Picchu is proving to be more than a piece of history left by the Incan Empire and to have possible interstellar links.