The Stone of
The Incas' engineering medium was
stone. They didn't need to use mortar to hold the walls in place.
Instead, they used precise geometry to cut the stones and create
The twelve corner-angles fit perfectly all surrounding blocks. The stones were positioned without the use of mortar and have withstood centuries and earthquakes.
Cuzco (Cusco) is located at
11,200 ft. above sea level in the Andes Mountains in Southern Peru.
Stone of twelve angles Puzzle: 22