Cusco or Cuzco (Spanish: [ˈkusko]; Quechua: Qosqo or Qusqu, pronounced [ˈqɔsqɔ]) is a city in southeastern Peru, near the Sacred Valley of the Andes mountain range and the Huatanay river. It is the capital of the eponymous province and department. The city is the seventh most populous in Peru; in 2017, it had a population of 428,450. Its elevation is around 3,400 m (11,200 ft). . The city was the capital of the Inca Empire from the 13th century until the 16th-century Spanish conquest. In 1983, Cusco was declared a World Heritage Site by UNESCO with the title "City of Cusco".
https://en.wikipedia.org/wiki/Cusco