The Basilica, the ancient Collegiate, is among the most interesting churches in Abruzzo. It rises where a religious nucleus existed since the 11th century. It was rebuilt in 1466 with a 5-nave configuration after the 1456 earthquake. The variety of shapes, furnishings, materials and structures, which over the centuries have stratified into the building, makes it a museum rich in works of art. It is accessed from the scenic staircase (1580) which goes to the side entrance with a late Romanesque portal (XV century). A Renaissance portal opens on the front facade. The environment features Romanesque-Renaissance architecture, with stone pillars and arches. The 5 large ships are covered with beautiful carved wooden coffered ceilings: the central one and the two intermediates are stuccoed in gold and frame fine canvases. On the left there is the baptistery with baptismal font (XVIII century) in murmuring inlay. Santo di Rocco is responsible for the railing of the Chapel of SS. Sacramento, built between 1699 and 1705 and finished by his nephew in 1717: the most famous piece of the Basilica. On the counter-façade wall is the choir of Bartolomeo Balcone (1619), also the author of the wooden pulpit that wraps one of the pillars of the central ship. All around there are wonderful altars in stone, wood, marble from the XV-XVIII centuries, made by master craftsmen from Pescara. At the end of the right aisle, the seventeenth-century altar of the Madonna del Colle stands out with the polychrome wooden statue of the Madonna (XIII century), a rare example of medieval Abruzzo art.