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
Machu Picchu accompany a deceased noble in the afterlife. Animal, liquid and dirt sacrifices to the gods were much more common, made at the Altar of the Condor. The tradition is upheld by members of the New Age Andean religion. Machu Picchu lies in the southern hemisphere, 13.164 degrees south of the equator. It is northwest of Cusco, on the crest of the mountain Machu Picchu, located about above mean sea level, over lower than Cusco, which has an elevation of . As such, it had a milder climate than the Inca capital. It is one of the most important archaeological sites