Citadel of Sacsahuayman, a native Inca complex surrounded by walls that were made by fitting stones tightly together without mortar, UNESCO World Heritage Site, Cusco Region, Peru, South America

Citadel of Sacsahuayman, a native Inca complex surrounded by walls that were made by fitting stones tightly together without mortar, UNESCO World Heritage Site, Cusco Region, Peru, South America