The city considered the capital of the Inca Empire was Cusco, located in present-day Peru. Cusco served as the political, cultural, and military hub of the empire, which flourished from the early 15th century until the Spanish conquest in the 16th century. The city was known for its sophisticated architecture, including temples and palaces built with large stone blocks, reflecting the Incas' advanced engineering skills. Cusco was also central to Inca mythology and religious practices, believed to be the navel of the world. Its significance continues today as a UNESCO World Heritage site and a symbol of Inca heritage.