Cattedrale della Santissima Trinità

The church of San Leonardo was built in the 14th century in Romanesque-Gothic style. In 1338 it was inaugurated and initially run by a religious brotherhood of Dominicans. The earthquake of 1456 damaged the church, which was enlarged inside. The earthquake of 1805 also caused some damage, although not much.

The church of San Bartolomeo is one of the oldest examples of Romanesque art in Campobasso. The church dates back to the middle of the 13th century and has a facade with a horizontal crown, the central part of which is higher than the sides. The pseudo-prothyrum that adorns the portal is the most obvious element of the façade and consists of two blind arcades divided by two columns leaning against the wall.

The church of San Giorgio is the oldest church in Campobasso, dating from the 10th century. Elements of pre-existing Romanesque buildings have been incorporated into the outer walls. A pelican on the right side and, at the back, a sun and a donkey's head with a bridle, enrich the simple and elegant structure of the church. The quadrangular bell tower is located at the end of the right side and alternates mullioned and single lancet windows.