The town's name, changed several times over the years, currently honors the patron saint. The second part, which distinguishes it from centers of other regions with the same name, was recently added. Municipality in the province of Campobasso, situated on a hill dominating the surrounding valleys, due to its privileged location, offers a wonderful panorama that extends from the Tremiti to the Gargano, from Monte Mauro to the border with the Abruzzo region, from which it is divided by the river Trigno . The lands are mainly cultivated with olive groves and vineyards. The charming old town features typical medieval stone houses and narrow streets. It is one of three municipalities of Molise inhabited by a Croatian minority.
The area was devastated by an earthquake in the second half of the XV century and shortly after an epidemic plague caused its depopulation. Fortunately, a century later, the area was chosen by a group of Croatian origin as their residence. This population, attacked by the Turks, sheltered here in Italy after being obliged to leave their homelands in the Balkans. Since then, San Felice slowly and gradually repopulated and even today, its inhabitants still preserves their original customs and traditions.
- the Church of Santa Maria of Constantinople, built in the XIII century, was enlarged during the XVI century and refurbished several times in subsequent years. The simple building in stone, is flanked by a bell tower with a square base, characterized by an archway, recently opened to allow an easier entrance to the building. The belfry features long lancet windows, surmounted by a drum, topped by a spire;
- the chapel of Pope San Felice, dedicated to the patron, was built in the XI century. Located at short distance from the town center, is built in stone and features a bell shaped roof. The façade is interrupted only by a rose window above the portal, adorned with a frame, which creates almost a gable, and two decorative stones, on one of which is engraved a phrase written in indecipherable characters, while another one features the representation of a man with a beard, maybe San Felice;
- the Ducal Palace, which is an imposing stone building, erected in the XVI century.