Machu Picchu - City of Peru

Machu Picchu is a pre-Columbian Inca site located 2,430 metres above sea level. It is situated on a mountain ridge above the Urubamba Valley in Peru, which is 80 kilometres northwest of Cuzco and through which the Urubamba River flows. The river is a partially navigable headwater of the Amazon River. Often referred to as "The Lost City of the Incas", Machu Picchu is one of the most familiar symbols of the Inca Empire.

Machu Picchu was built in the classical Inca style, with polished dry-stone walls. Its primary buildings are the Intihuatana, the Temple of the Sun, and the Room of the Three Windows. These are located in what is known by archaeologists as the Sacred District of Machu Picchu. In September 2007, Peru and Yale University reached an agreement regarding the return of artifacts which Hiram Bingham had removed from Machu Picchu in the early twentieth century.

Machu Picchu was constructed around 1462, at the height of the Inca Empire. It was abandoned less than 100 years later. It is likely that most of its inhabitants were wiped out by smallpox before the Spanish conquistadores arrived in the area, and there is no record of their having known of the remote city. Hiram Bingham, the credited discoverer of the site, along with several others, originally hypothesized that the citadel was the traditional birthplace of the Inca of the "Virgins of the Suns".

Machu Picchu was designated as a in 1983 when it was described as "an absolute masterpiece of architecture and a unique testimony to the Inca civilization".

On July 7, 2007, Machu Picchu was voted as one of New Open World Corporation's New Seven Wonders of the World. The World Monuments Fund placed Machu Picchu on its 2008 Watch List of the 100 Most Endangered Sites in the world because of environmental degradation resulting from the impact of tourism, uncontrolled development in the nearby town of Aguas Calientes that included a poorly sited tram to ease visitor access, and the construction of a bridge across the Vilcanota River that is likely to bring even more tourists to the site in defiance of a court order and government protests against it.