Machu Picchu M. Anderson, 2006 Location The legendary 'Lost City of Machu Picchu‘, located high in the Peruvian Andes, is without a doubt the most important tourist attraction in Peru and one of the world's most impressive archaeological and civil engineering sites. Setting
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M. Anderson, 2006
The valley below and the zig-zag road leading up to Machu Picchu.
The central plaza that separates the religious from the urban section, has a great rock in the center.
The religious section contains splendid architecture and masonry works.
One of the most important and enigmatic is probably the Intihuatana shrine, this block of granite was presumably used to make astronomical observations.
Some smaller buildings next to large terraces are part of this section and thought to have served as lookout posts.
One of the buildings has several circular holes carved on the rock floor named the "mortar room" believed to have been used for preparation of dyes.
Left side of ruins. The Citadel is a stupendous achievement in urban planning, civil engineering, architecture and stone masonry.
Perhaps the most visually striking features of the drainage system are the agricultural terraces.
Machu Picchu includes 4.9 ha of agricultural terraces, which are held in place by stone retaining walls.
In addition to maximizing the land available for farming, the terraces also protected the agricultural sector from erosion.
Wright conducted soil analyses that showed that the Inca constructed the terraces with subsurface drainage in mind.
The Inca layered each terrace for efficient drainage, with a layer of stones at the bottom, followed by gravel, sandy material, and topsoil.
The Inca constructed their plazas in the same way as the terraces, with a deep subsurface layer of rock chips.
The plazas received runoff from other areas of Machu Picchu, and the subsurface layer of rocks helped the water to penetrate the ground quickly.
Machu Picchu’s sewage system was built right into the walls of each new building.