machu picchu old mountain, pre columbian inca site situated on a mountain ridge above the urubamba valley in peru

america americas ancient ancientsite archaelogical archaelogy archeological citadel civilisation columbian excavation excavations famous fortifications fortified fortress fortresses forts inca incan latin macchu machu mountain mountains mountainside mounts old panorama past peru peruvian picchu pichu pre precolumbian rampart ramparts ridge scenes scenics sights situated skies steep urubamba valley vista