Upon arrival to Cusco, you'll be transferred to the hotel and have free time to rest and adapt to the altitude. In the afternoon, your city sightseeing tour begins with the Temple of the Sun (Koricancha), and continues with the archeological site of Sacsayhuaman. This enormous place was strategically built on a hill overlooking Cusco and is famous for its carved stones, some of which stand at 30 feet (9 meters) tall and weigh around 350 tons.