Ключевые слова: ancient, andes, archaeology, architecture, civilization, craftsmanship, culture, engineering, exploration, fortress, heritage, highlands, hiking, historical site, history, inca, indigenous, masonry, monumental, ollantaytambo, outdoors, peru, precision, precolumbian, remote, ruins, sacred valley, scenic, spiritual, stone construction, stone wall, tourism, traditional, travel, trekking, unesco,