Places of Interest nearby
Location address: Italië, Terni, Orvieto
Number of texts: 3
Orvieto had a problem with water supply. This was due to its unique location on this isolated plateau of porous tuff. This water problem made Orvieto extremely vulnerable during long sieges against the city. Pope Clement VII ordered to make a very deep well (53m) through the plateau reaching the water. This well is known as the Pozzo di San Patrizio. It is remarkable that there is a tunnel around the well built in the shape of a spiral. This allowed the water to bring up by asses.
You can see Orvieto from far away. It’s a great example of an “acropolis”. The city lies on a plateau that is built from volcanic tuff. This type of tuff is excellent building material. For centuries people used the rock for buildings in Orvieto. This created a network of underground passages and vaults inside the plateau. You can still visit this underground city.
Linked themes: Geology
Orvieto is a city and comune in Province of Terni, southwestern Umbria, Italy situated on the flat summit of a large butte of volcanic tuff. The site of the city is among the most dramatic in Europe, rising above the almost-vertical faces of tuff cliffs that are completed by defensive walls built of the same stone called Tufa.