choquequirao ancient archaeological complex that towers above the apurimac river canyon and rests atop a flattened hill

choquequirao peru travel inca city ancient cuzco america stone tourist view hill archaeological cusco remote lost trail cachora rock mountain destination ruin civilization andes ruins historic fortress apurimac hiking beautiful landscape outdoor settlement peruvian choquequirau site valley truncated top sunchu pata buildings terraces hilltop leveled ringed stones platform river canyon machu picchu