The Duomo cathedral is a beautiful neoclassical building, initially built on the site of an earlier Romanesque church. Its five domes dominate the center of Treviso together with the imposing porch added in the first half of the nineteenth century.

Inside the cathedral has three naves. In the central part stands the High Altar characterized by several decorative apparatuses such as the fresco by the local artist Antonio Beni.

The most important piece of art is the Annunciation of Tiziano, painted in 1517. Tiziano, who had very recently become the official painter of the Serenissima Republic, puts the Madonna in the foreground, while the Angel comes from the background illuminated by sunlight. The walls and the dome were frescoed by another important Venetian painter: Pordenone.

Dedicated to the Apostle Saint Peter, the Duomo is a landmark of the city and is worth a visit.