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.
2017
1998
2021
2004
1989
1984
1981
1967
2016
2013
1986
1987
1970
2023
1957
2022
1968
1961