Cusco (also spelled Cuzco, and in the local Quechua language as Qusqu IPA: ['qos.qo]) is a city in southeastern Peru, near the Urubamba Valley (Sacred Valley) of the Andes mountain range. It is the capital of the Cusco Region as well as the Cusco Province. The city has a population of 348,935 which is triple the figure of 20 years ago. Located on the eastern end of the Knot of Cusco, its altitude is around 3,300 m (10,800 ft). Cusco is the historic capital of the Inca Empire.