The Cathedral of Trivento, Cathedral of the Saints Nazario, Celso and Vittore, spectacular example of neoclassical religious architecture.
The cathedral is located in the historic center of the city and dominates the surrounding alleys with its high bell tower.
The church is open every day, Morning: from 07.30 to 13.00, Afternoon: from 4.00 pm to 7.00 pm.
Under the cathedral there is a crypt. The crypt is accessed from the side aisles of the Cathedral, is ed a San Casto, the tradition wants it built on a temple dedicated to Diana (as evidenced by the presence of a Roman inscription with dedication to this deity). It is divided into seven small longitudinal and three transverse naves, with round arches and cross vaults supported by columns (some of which are monolithic) and pillars, the main nave ends with three apses.