inca empire
Machu Picchu
Inca citadel complex built c. 1450–1532 CE in the Cusco Region of Peru, elevation c. 2,430 m. Attributed to Emperor Pachacuti; constructed in precision ashlar masonry without mortar. UNESCO World Heritage Site (inscribed 1983) held in situ. Purpose remains debated: royal estate, religious sanctuary, or astronomical observatory.
Scholarly Significance
Anchor the Inca Empire cluster with the most celebrated surviving Inca architectural complex, Machu Picchu, as an in-situ UNESCO World Heritage Site.
Notes
- ·Machu Picchu is an Inca urban and ceremonial complex set on a ridge at c. 2,430 m above sea level, approximately 75 km northwest of Cusco.
- ·Construction is attributed to Emperor Pachacuti (r. 1438–1471); AMS radiocarbon dating (Burger et al., 2021) places occupation c. 1420–1530 CE.
- ·Built using the characteristic Inca technique of dry ashlar masonry: finely cut polygonal stone blocks fitted without mortar, enabling seismic flexibility.
- ·The site is divided into an agricultural sector (extensive terraced fields) and an urban sector comprising elite residential, ritual, and astronomical structures.
- ·Key structures: Temple of the Sun (curved tower, solstice alignment); Intihuatana (carved solar hitching stone); Temple of the Three Windows; Room of the Three Windows; the 'Princess's Palace'.
- ·The site was apparently abandoned c. 1532 CE, consistent with the disruption caused by the Spanish conquest; it was never destroyed by the conquistadors and remained unknown outside Andean communities until Hiram Bingham III's 1911 expedition.
- ·Held in situ as a Peruvian national monument under the administration of the Peruvian Ministry of Culture and the Municipality of Machu Picchu.