
Layers of zig zag walls at Sacsayhuamán, Cusco.
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Sacsayhuamán temple & fort, above Cusco, used giant stones.
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Massive rock walls of Sacsayhuamán, Cusco was used by Spanish Conquistadors during Incan siege.
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Huge boulders, walls at the Sacsayhuaman fortress above Cusco.
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