Expedition Unknown - For #WhereInTheWorld Wednesday, I'm hanging at the cryptic Gate of the Sun in #Bolivia. It was erected by the Tiwanaku people and is carved from a single piece of
Joe Rogan Questions Everything - The megalithic site of Puma Punku, dating back to approximately 15,000 years, is an enigma that still puzzles archaeologists and scientists to this day. The stonework is
![PDF) Tiahuanaco monuments (Tiwanaku / Pumapunku) in Bolivia are made of geopolymer artificial stones created 1400 years ago PDF) Tiahuanaco monuments (Tiwanaku / Pumapunku) in Bolivia are made of geopolymer artificial stones created 1400 years ago](https://www.researchgate.net/profile/Joseph-Davidovits/publication/335699977/figure/fig1/AS:801213226426371@1568035527782/South-American-Andes-Altiplano-with-Tiwanaku-Gate-of-the-Sun-Pumapunku_Q320.jpg)