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.
2002
1985
1992
1997
1968
1965
2018
2016
1956
2019
2013
2009
2014
1988
1996
1970
1999
2015