Machu Picchu

Machu Picchu is a pre-Columbian Inca site located 2,400 meters (7,875 ft) above sea level. It is situated on a mountain ridge above the Urubamba Valley in Peru, which is 80 km (50 mi) northwest of Cusco and through which the Urubamba River flows. Often referred to as "The Lost City of the Incas", Machu Picchu probably is the most familiar symbol of the Inca Empire. It is also one of the New Seven Wonders of the World. Most of the construction in Machu Picchu uses 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. The Incas were among the best stone masons the world has seen, and many junctions in the central city are so perfect that it is said not even a knife blade fits between the stones. According to archaeologists, the urban sector of Machu Picchu was divided into three great districts: the Sacred District, the Popular District to the south, and the District of the Priests and the Nobility. Located in the first zone are the primary archaeological treasures: the Intihuatana, the Temple of the Sun and the Room of the Three Windows. These were dedicated to Inti, their sun god and greatest deity.