Much Older than the Inca
In my pole shift research I have paused to focus on Chan Thomas, whose CIA classified book "The Adam and Eve Story" emphasized the importance of studying the ruins of Tiahuanaco in Bolivia, near the Peruvian border. It seems that megalithic stone ruins there are at least 15,000 years old. (The cyclopian and polygonal styles could not be reproduced in Inca times.) My online searches recently brought me to this wonderful video:
Why the Megalithic Andean Architecture in Peru and the Sacred Valley is older than the INCA!
[youtube https://www.youtube.com/watch?v=oxuiB1vhDjM&w=640&h=360]