Hatun Rumiyoc (Stone of 12 Angles)

A wall in central Cusco constructed from an extremely hard type of stone known as green diorite, located on the outside of a palace attributed to the Inca Roca. The wall is admirable for its polygonal architecture, and runs along almost the entire length of Hatunrumiyoc Road, one of the main pedestrian thoroughfares in Cusco. In the center of the wall is a stone with 12 cut angles, famous for the perfection with which each corner lies flush against the surrounding stones. Colonial and republican builders have added to the wall, and it now forms one side of the Archbishop’s Palace — the Museum of Art.