The ancient city that was the capital of the Inca Empire is Cusco. Located in modern-day Peru, Cusco was not only the political and administrative center of the Inca civilization but also a hub of cultural and religious activity. The Incas developed an extensive network of roads and infrastructure radiating from Cusco, which facilitated trade and communication across their vast empire. The city is renowned for its impressive architecture, blending Inca and colonial Spanish influences, and was designated a UNESCO World Heritage Site in 1983. Cusco remains a significant historical and cultural destination today.