Castiglione del Lago

Castiglione del Lago is a town in the province of Perugia of Umbria (central Italy), on the southwest corner of Lake Trasimeno. Orvieto is south, Chiusi is to the south west, Arezzo is to the north west, Cortona is to the north and Perugia is to the south east. Geography and urban structure Castiglione del Lago has evolved on what used to be an island - the fourth island of Lake Trasimeno, in its south west region. Over the centuries, as the town grew, the flat gap between the island and the shore was filled with piazzas, houses, churches and other buildings. The newest parts of the city are at some distance from the old, so the centro storico (historical center) of Castiglione del Lago is a well-preserved medieval locality that seems to be governed by a "law of threes". In the town walls there are three gates, and inside the town there are three piazzas and three churches.