[www.geopolymer.org]

The study carried out on the monumental stones constituting the Pumapunku site in Tiahuanaco, Bolivia, proves that the stones are artificial and are not carved with unknown technology or by extraterrestrials. It is the human genius, intelligently exploiting the resources of its environment, who created these marvels.

"The Stone Age did not end for lack of stone, and the Oil Age will end long before the world runs out of oil"

-- Sheikh Zaki Yamani