DEMO Puno, city, southern Peru. It lies on the western shore of Lake Titicaca at 12,549 feet (3,826 meters above sea level), the world’s highest navigable lake, between Puno and Guaqui, Bolivia (which is linked by road to La Paz). The city has retained a colonial flavour, particularly in its churches and Pre-Columbian funeral towers nearby. Puno serves as a commercial and communications centre of the southern Peruvian Andes and trades in the wool of llamas and alpacas.