Once called the church of Santi Giovanni Battista ed Evangelista, it now serves as the local civic museum (Museo Civico).
In the apse are 16th century frescoes by the school of Benedetto Coda, including a scene of the Decapitation of St John the Baptist and a Baptism of Christ.
Also painted around the windows of the apse are the four doctors of the church (from left to right, Gregory, Ambrose, Augustine, and Jerome) and the four Evangelists.
The church had some refurbishment in the second half of the 18th century, and underwent restoration in 1973, when it housed for a time local museum displays.
It now displays both local paintings and archeologic findings, including a Madonna and Child between Saints Lazarus and Job by Il Garofalo.