Machu Picchu or Machu Pikchu is a 15th-century Inca site located 2,430 metres above sea level. It is located in the Cusco Region, Urubamba Province, Machupicchu District in Peru. Machu Picchu was built in the classical Inca style, with polished dry-stone walls. Its three primary structures are the Inti Watana, 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.