Machu Picchu, Peru

Machu Picchu is a pre-Columbian Inca site located 2,430 metres (8,000 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 Cuzco and through which the Urubamba River flows. The river is a partially navigable headwater of the Amazon River. Often referred to as "The Lost City of the Incas", Machu Picchu is one of the most familiar symbols of the Inca Empire.


The ruins of Machu Picchu, rediscovered in 1911 by Yale archaeologist Hiram Bingham, are one of the most beautiful and enigmatic ancient sites in the world. While the Inca people certainly used the Andean mountain top (9060 feet elevation), erecting many hundreds of stone structures from the early 1400's, legends and myths indicate that Machu Picchu (meaning 'Old Peak' in the Quechua language) was revered as a sacred place from a far earlier time. Whatever its origins, the Inca turned the site into a small (5 square miles) but extraordinary city. Invisible from below and completely self-contained, surrounded by agricultural terraces sufficient to feed the population, and watered by natural springs, Machu Picchu seems to have been utilized by the Inca as a secret ceremonial city. Two thousand feet above the rumbling Urubamba river, the cloud shrouded ruins have palaces, baths, temples, storage rooms and some 150 houses, all in a remarkable state of preservation. These structures, carved from the gray granite of the mountain top are wonders of both architectural and aesthetic genius. Many of the building blocks weigh 50 tons or more yet are so precisely sculpted and fitted together with such exactitude that the mortarless joints will not permit the insertion of even a thin knife blade. Little is known of the social or religious use of the site during Inca times. The skeletal remains of ten females to one male had led to the casual assumption that the site may have been a sanctuary for the training of priestesses and /or brides for the Inca nobility. However, subsequent osteological examination of the bones revealed an equal number of male bones, thereby indicating that Machu Picchu was not exclusively a temple or dwelling place of women.


Machu Picchu was declared a Peruvian Historical Sanctuary in 1981 and a UNESCO World Heritage Site in 1983. Since it was not plundered by the Spanish when they conquered the Incas, it is especially important as a cultural site and is considered a sacred place.

Machu Picchu was built in the classical Inca style, with polished dry-stone walls. Its primary buildings are the Intihuatana, 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. In September 2007, Peru and Yale University reached an agreement regarding the return of artifacts which Hiram Bingham had removed from Machu Picchu in the early twentieth century.


One of Machu Picchu's primary functions was that of astronomical observatory. The Intihuatana stone (meaning 'Hitching Post of the Sun') has been shown to be a precise indicator of the date of the two equinoxes and other significant celestial periods. The Intihuatana (also called the Saywa or Sukhanka stone) is designed to hitch the sun at the two equinoxes, not at the solstice (as is stated in some tourist literature and new-age books). At midday on March 21st and September 21st, the sun stands almost directly above the pillar, creating no shadow at all. At this precise moment the sun "sits with all his might upon the pillar" and is for a moment "tied" to the rock. At these periods, the Incas held ceremonies at the stone in which they "tied the sun" to halt its northward movement in the sky. There is also an Intihuatana alignment with the December solstice (the summer solstice of the southern hemisphere), when at sunset the sun sinks behind Pumasillo (the Puma's claw), the most sacred mountain of the western Vilcabamba range, but the shrine itself is primarily equinoctial.


Machu Picchu is 80 kilometers northwest of Cusco, on the crest of the mountain Machu Picchu, located about 2,350 meters (7,710 feet) above sea level. It is one of the most important archaeological sites in South America and the most visited tourist attraction in Peru.

It is above Urubamba Valley. From atop the cliff of Machu Picchu, there is a vertical rock face of 600 meters rising from the Urubamba River at the foot of the cliff. The location of the city was a military secret, and its deep precipices and mountains provide excellent natural defenses. The Inca Bridge, an Inca rope bridge, across the Urubamba River in the Pongo de Mainique, provided a secret entrance for the Inca army. Another Inca bridge to the west of Machu Picchu, the tree-trunk bridge, at a location where a gap occurs in the cliff that measures 6 metres (20 ft), could be bridged by two tree trunks. If the trees were removed, it would leave a 570 metres (1,900 ft) fall to the base of the cliffs, also discouraging invaders.


The city sits in a saddle between two mountains, with a commanding view down two valleys and a nearly impassable mountain at its back. It has a water supply from springs that cannot be blocked easily, and enough land to grow food for about four times as many people as ever lived there. The hillsides leading to it have been terraced, not only to provide more farmland to grow crops, but to steepen the slopes which invaders would have to ascend. There are two high-altitude routes from Machu Picchu across the mountains back to Cusco, one through the sun gate, and the other across the Inca bridge. Both easily could be blocked if invaders should approach along them. Regardless of its original purpose, it is strategically located and readily defended.


Hikers, tourists, and the early explorers describe similar emotions as they climb their way through the Inca Trail. Many call the experience magical. Glancing out from the Funerary Rock Hut on all the temples, fields, terraces, and baths seems to take you to another time. Blending in with the hillside itself, many say the area creates a seamless and elegant green paradise, making it a must for anyone who travels to Peru.