Perugia, the great “Guelph stronghold” stands in the heart of the region, with its five historical quarters enclosed by its Etruscan town walls: enormous bastions formed by cyclopean square masses, was constructed 22 centuries ago and are still visible for long stretches. Among the most important events held in the city, well worth mentioning are the music festival "Umbria Jazz" and the gastronomic event Eurochocolate.