The Sergio Secci Theater is one of the public theaters in the city of Terni, in Umbria, as well as currently the only one in use. Located in the CAOS spaces near the historic city center. Inaugurated in 2010, it is a modern and functional structure obtained from the renovation of one of the warehouses of the former Siri factory, of which today it preserves the historical elements of industrial archeology. Divided into an auditorium and a grandstand, it has a total capacity of 298 seats.