Cusco was built by the Incas in the shape of a puma, with Sacsayhuaman as its head. A fortress built at around 3500m (correct me if I’m wrong), we dragged ourselves up here partly as training for the Inca trail. Local women and children tended a flock of llamas on the grassy slopes below; one of the girls ran down at one point to pelt an excitable male with stones. I guess they all understand one another.