Machu Picchu is known as "The Lost City of The Incas". It is located 2,430 metres above sea level and is situated on an Andes mountain ridge above the Urubamba Valley in Peru, South America, which is 80 kilometres northwest of Cusco, Peru. Most archaeologists believe that Machu Picchu was constructed as a palace for the Inca emperor Pachacuti from 1438 to 1472. It is the most renowned Inca construction that has been built and known to date.