The Piedra de los 12 Ángulos (Stone of the 12 Angles) is one of the most famous examples of Inca stonework in Cusco, Peru. Located in the Hatun Rumiyoc street, this massive stone is renowned for its perfect fit, with twelve precisely carved angles that interlock seamlessly with the surrounding stones.
Source:https://www.cuscotudestinotravel.com/
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