Machu picchu, city of Inca in Peru. sometime called the lost city of Inca. Machu Picchu is a 15th century Inca citadel situated on a mountain ridge 2430 meters (7970 ft.) above sea level. Inca city of Machu picchu is located in the Cuzco Region, Urubamba province, machu picchu district in Peru, above the sacred valley, which is 80 kilometers (50 mi) northwest of Cuzco and through the Urubamba river flows. some time it called Machu picchu city in sky, the lost city of Inca, road to the sky cetc.