Things to Do in Cusco
Visit the Plaza and the Main Square
Visit the Koricancha
Wander the trendy artisan quarter of San Blas, filled with artist studios and restaurants
Head to the fascinating San Pedro market on the other side of town.
Visit the Centre of Traditional Textiles on Avenida Sol (pricey but exquisite quality) their museum gives an excellent overview of the weaving traditions of Cusco and it's a good place to "get your eye tuned" to good quality weaving.
Activities in the evening
Ask around when you arrive for local events / bands on a restaurants / discoteks.
Centro de arte nativo
Inka Wall (live shows)