Puma Punku, Bolivia.
Puma Punku is part of a large temple complex or monument group that is part of the Tiwanaku Site near Tiwanaku, Bolivia. Tiwanaku is significant in Inca traditions because it is believed to be the site where the world was created.
In assembling the walls of Pumapunku, each stone was finely cut to interlock with the surrounding stones and the blocks fit together like a puzzle, forming load-bearing joints without the use of mortar. One common engineering technique involves cutting the top of the lower stone at a certain angle, and placing another stone on top of it which was cut at the same angle. The precision with which these angles have been utilized to create flush joints is indicative of a highly sophisticated knowledge of stone-cutting and a thorough understanding of descriptive geometry. Many of the joints are so precise that not even a razor blade will fit between the stones.
