The Incan City of Machu Picchu Discovered. ( Fro, Wikipedia)

Historic Sanctuary of Machu Picchu *
UNESCO World Heritage Site
Huayna Picchu towers above the ruins of Machu Picchu
Country	Peru
Type	Mixed
Criteria	i, iii, vii, ix
Reference	274
Region **	Latin America and The Caribbean
Inscription history
Inscription	1983 (Seventh Session)
Map showing location of Machu Picchu in Peru
* Name as inscribed on World Heritage List

Machu Picchu (Spanish pronunciation: [ˈmatʃu ˈpitʃu], Quechua: Machu Pikchu [ˈmɑtʃu ˈpixtʃu], "Old Peak") is a pre-Columbian 15th-century Incasite located 2,430 metres (7,970 ft) above sea level. It is situated on a mountain ridge above the Urubamba Valley in Peru, which is 80 kilometres (50 mi) northwest of Cusco and through which the Urubamba River flows. Most archaeologists believe that Machu Picchu was built as an estate for the Inca emperor Pachacuti (1438–1472). Often referred to as the "Lost City of the Incas", it is perhaps the most familiar icon of the Inca World.
Machu Picchu as discovered in 1911
On 24 July 1911, Hiram Bingham announced the discovery of Machu Picchu to scholars. An American historian employed as a lecturer at Yale University, Bingham had been searching for the city of Vilcabamba, the last Inca refuge during the Spanish conquest. He had worked for years in previous trips and explorations around the zone. Pablito Alvarez, a local 11 year-old Quechua boy, led Bingham up to Machu Picchu.Some Quechuas lived in the original structures at Machu Picchu.

A complete overview of the site

The site received significant publicity after the National Geographic Society devoted their entire April 1913 issue to Machu Picchu.

In 1981 Peru declared an area of 325.92 square kilometers surrounding Machu Picchu as a "Historical Sanctuary". In addition to the ruins, the sanctuary 

Terraced Fields in the upper Agricultural Sector

The ruins of Machu Picchu are divided into two main sections known as the Urban and Agricultural Sectors, divided by a wall. The Agricultural Sector is further subdivided into Upper and Lower sectors, while the Urban Sector is split into East and West sectors, separated by wide plazas.

The central buildings of Machu Picchu use the classical Inca architectural style of polished dry-stone walls of regular shape. The Incas were masters of this technique, called ashlar, in which blocks of stone are cut to fit together tightly without mortar. Many junctions in the central city are so perfect that it is said not even a blade of grass fits between the stones.

View of the residential section of Machu Picchu

Map of Machu Picchu