Ancient Aliens: Engineering Puma Punku (Season 12) | Exclusive | History - YouTube
JAN 1 92018
UNESCO World Heritage Centre - State of Conservation (SOC 2013) Tiwanaku: Spiritual and Political Centre of the Tiwanaku Culture (Bolivia (Plurinational State of))
Considering Certain Lithic Artifacts of Tiahuanaco (Tiwanaku) and Pumapunku (Bolivia) as Geopolymer Constructs – Geopolymer Institute