machu picchu, cusco - peru

abandoned america ancient andean andes architecture austral bingham citadel city civilization culture cusco cuzco destinations empire famous fortification fortress heritage hiram history inca incan incas inka landmark lost machu mountain mountains ollantaytambo pachacuti peru picchu place precolumbian quechua river ruins sacred south stone stonewalled stronghold tourism touristic travel urban urubamba valley wall walled