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.
2011
1957
2020
1989
2010
1984
2003
2009
2014
2002
1991
1988
2006
2019
2015
1995
2022