![Graham Hancock on Twitter: "The giant megaliths of Puma Punku bear witness to an immense task carried out in remote antiquity by unknown hands at an altitude of almost 13,000 feet above Graham Hancock on Twitter: "The giant megaliths of Puma Punku bear witness to an immense task carried out in remote antiquity by unknown hands at an altitude of almost 13,000 feet above](https://pbs.twimg.com/media/FCZsm-8XMAIk5hD.jpg:large)
Graham Hancock on Twitter: "The giant megaliths of Puma Punku bear witness to an immense task carried out in remote antiquity by unknown hands at an altitude of almost 13,000 feet above
The curious even groove and drill holes on a stone at ancient Puma Punku in Bolivia. We return in November 2017:... | By Brien D Foerster | Facebook
![Precisely carved stone at Pumapunku ruins, Pre-Columbian archaeological site, Bolivia Stock Photo - Alamy Precisely carved stone at Pumapunku ruins, Pre-Columbian archaeological site, Bolivia Stock Photo - Alamy](https://c8.alamy.com/comp/2GGG40N/precisely-carved-stone-at-pumapunku-ruins-pre-columbian-archaeological-site-bolivia-2GGG40N.jpg)
Precisely carved stone at Pumapunku ruins, Pre-Columbian archaeological site, Bolivia Stock Photo - Alamy
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