According to documents from the mid-sixteenth century, Machu Picchu would have been one of the rest homes of Pachacútec, ninth Inca of Tahuantinsuyo between 1438 and 1470. However, some of its best constructions and the obvious ceremonial character of the main access road To the llaqta account for its origin prior to Pachacutec and its presumed use as a religious sanctuary.2 Both uses, palace and sanctuary, would not have been incompatible. Even when discussing its alleged military character, so the popular descriptions of "fortress" or "citadel" could have been overcome.3.
Machu Picchu is considered at the same time a masterpiece of architecture and engineering.4 Its peculiar architectural and landscape features, and the veil of mystery that has woven around it much of the literature published on the site, have made it One of the most popular tourist destinations on the planet.
Machu Picchu has been on UNESCO's World Heritage List since 1983, as part of an entire cultural and ecological complex known as the historic Sanctuary of Machu Picchu. On 7 July 2007 Machu Picchu was declared one of the new seven wonders of the modern world in a ceremony held in Lisbon (Portugal), with the participation of one hundred million voters worldwide.