Dry stone from the arable or cultural land. They serve both as cattle/sheep fences and the lot's borders. Sometimes also the dry stone terracing is apparent, often combined with parts of stone masonry (house foundations and shed walls) that are held together by a clay-cum-needles "composite" mortar. In Peru in the 15th century AD, the Inca made use of otherwise unusable slopes by building dry stone walls to create terraces. They also employed this mode of construction for freestanding walls. Their ashlar type construction in Machu Picchu uses the classic Inca architectural style of polished dry-stone walls of regular shape. The Incas
Inti Punku archaeological site with windows and gates that are held up by terraces. This is the first place that tourists can see the whole sanctuary. Tourists are able to see the sun rise over the whole mountains by Machu Picchu. The location of the gate was given to watch the people passing. The route covers a distance of approximately a mile, eventually rising above the ruins of Machu Picchu The ruins themselves serve as a final stop for hikers completing an optional five-day hike from a point far back from Aguas Calientes, the city at the base of Machu Picchu. This