When the Spanish conquerors arrived first to these lands; they could not explain themselves how Peruvian "Indians" (ignorant, wild, without any ability of logical reasoning, one more animal species according to conquerors) could have built such a greatness. Their religious fanaticism led them to believe that all that was simply work of demons or malign spirits. Still today, many people believe in the inability of ancient Quechuas to create such a wonder, so they suggest that they were made by beings of some other worlds, extraterrestrial beings with superior technology that made all that possible. However, our history and archaeology demonstrate that those objects of admiration are an undeniable work of the Incas, Quechuas, Andean people or however pre-Hispanic inhabitants of this corner of the world would be named.
The imperial city Cusco, meaning ‘navel of the earth,’ was laid out in the form of a puma, the animal that symbolized the Inca dynasty. The belly of the puma was the main plaza, the river Tullumayo formed its spine, and the hill of Sacsayhuaman its head.
One of the most imposing architectonic complexes inherited from the Incan Society is Sacsayhuaman, which because of several of its qualities is considered as one of the best monuments that mankind built on the earth's surface.
The wall or rampart is the most impressive section, built with enormous carved limestone boulders, this construction has a broken line that faces to the main plaza called Chuquipampa which is a slope with 25 angles and 60 walls.The biggest carved boulder of the first wall weighs about 70 tons and like all of the other rocks was brought from a quarry called Sisicancha, three kilometers away and where there are still rocks that were transported part of the way. Each wall is made up of 10 fronts with the most important ones known as Rumipunco, tiupunku, Achuanpunku and Viracocha punku.