Machu Pichu

Machu Pichu is a 15th-century Inca citadel situated on a mountain ridge in Peru.Most archaeologists believe that Machu Picchu was constructed as an estate for the Inca emperor. It is the most familiar icon of Inca civilization. The Incas built the estate around 1450 but abandoned it a century later at the time of the Spanish Conquest. Although known locally, it was not known to the Spanish during the colonial period and remained unknown to the outside world until American historian Hiram Bingham brought it to international attention in 1911.It was only used for approximately 80 years before being abandoned seemingly due to destruction of the Spanish Conquests in other parts of the Inca Empire. It is possible that most of its inhabitants died from smallpox introduced by travellers before the Spanish conquistadors arrived in the area.