San Benedetto, built by the Benedictines from the 7th century AD; it includes 13th and 16th centuries frescoes San Giovanni Evangelista (c. 9th century, rebuilt in the 13th century). It has 13th-15th century frescoes, including stories of St. Catherine (14th century), a Madonna with Child (15th century) San Tommaso d'Aquino (13th century) San Nicola' (13th century)