Cuzco, in southern Peru, is a historic city. It was the capital of the_____ Inca Empire, from the 1100s to the 1500s. The town is located high up in the Andes mountain, at an altitude of 11,500 feet. Many visitors feel_____ and suffer_____ headaches, nausea, and shortness of breath because of the_____ altitude. The symptoms usually go away after a few day.