Terni is a major industrial city in Umbria, producing large quantities of steel and related products. It’s also known for its chemical industry and has recently focussed on the renewable energy sector. During World War II it was heavily bombed with 40% of its buildings destroyed or damaged, so don’t expect too much. Nevertheless, it has retained a cathedral, dedicated to the Assumption of the Virgin, the Basilica of St Valentine, some fine churches and public buildings and the remains of a Roman arena. There’s also a good art gallery, housed in the 18th-century Palazzo Gazzoli.