The Cathedral of San Michele Arcangelo also known as the Duomo is the result of various artistic languages, due to restoration and rebuilding over the centuries. The construction of the cathedral began in 1129 under the episcopate of Rainulfo, and was completed under the episcopate of Bishop John I, as can be seen from the inscriptions on the right, left and central portal of the cathedral. It is precisely these elements that make the Cathedral a true fusion of different architectural styles that dates back to medieval times. The church has a plan in the shape of a Latin Cross, which highlights the clear division into two main bodies and has two entrances on the sides, one to the west that leads into Piazza Vescovado and serves as a churchyard, one to the south where the road runs along the bell tower. On the left of the Cathedral there is an ancient chapel of St. John the Baptist (already mentioned in 1310) with an altar in Carrara marble. On the right of the Cathedral there is the Sacellum, followed by the Bishopric with the Episcopal Seminary.
