Author Brian Foerster explores the possibility that a technologically advanced civilization existed in the areas of Machu Picchu, Ollantaytambo and PumaPunku in Peru, long before the Inca Empire.
1989
2023
2019
2024
—
2007
2020
1987
2015
1982
1993
1986
2013
2006
2012
1997
2018