When was Machu Picchu built, and could its megalithic foundations offer proof of a pre-diluvian connection? With over 200 structures uncovered, evidence at Machu Picchu is pointing to contrasting time periods with architects of differing sophistications.

Could the secrets of Palenque lead to pre-diluvian architects within the mysterious lands of the Mayan Empire? Exploring the architecture, foundations, and connections to Atlantis and Mu, experts examine Palenque and the site's astronomical alignments.