Between the Piano d'Erba and the Larian Triangle there is a singular territory that extends in the vicinity of Lake Segrino, this stretch of water was called "Fons Sacer" and already from the time of the Celts and Romans this place was populated by ancient people. What is proposed is an itinerary wandering through time and in particular discovering the Middle Ages when this singular land was rich in towers and castles. It was in fact for its geographic conformation a place of passage and control towards the north since Roman times, with a road leading to the apex of the Larian...