Orvieto
Orvieto is a town of the region Umbria, situated on the flat summit of a large butte of volcanic tuff. The site of the city rises above the almost-vertical faces of tuff cliffs that are completed by defensive walls built of the same stone called Tufa. Orvieto was built originally in the Etruscan era, and it kept growing throughout the ages. It now has the looks of a medieval small town, but it’s still possible to understand its entire history by visiting the town’s most important sites.