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In the 15th century, the Incan Emperor Pachacútec built a city in the clouds on the mountain known as Machu Picchu . This extraordinary settlement lies halfway up the Andes Plateau, deep in the Amazon jungle and above the Urubamba River. It was probably abandoned by the Incas because of a smallpox outbreak and, after the Spanish defeated the Incan Empire, the city remained 'lost' for over three centuries. It was rediscovered by Hiram Bingham in 1911

Peru