Collegiate church of Saint Ursus

Later, bishop Anselm of Aosta further renovated the church, introducing a basilica plan with three naves with wooden trusses.

Fragments of a Romanesque series of paintings are preserved in good condition in the space between the current vault and the original ceiling.

Stylistically they resemble the bright colours and strongly marked outlines of some of the frescoes at the Galliano Basilica near Cantù.

The quadrangular-plan bell tower, dating to 989, has kept some of the lower 15 metres (49 ft) of the original medieval structure.

The church is home to numerous missals and reliquaries, including the relics of Ursus, which rest in the crypt.