San Martino, Minor basilica in Treviglio, Italy.

San Martino is a basilica on Treviglio's central square, opposite the town hall. Its late-Baroque facade, designed by Giovanni Ruggeri in 1740, has two orders and a 16th-century Renaissance portal by Antonio Maria Pirovano, topped by a statue of Saint Martin of Tours. The interior has three naves and a trompe-l'œil vault painted by the Galliari brothers.

The basilica was founded in 1008 on the site of an earlier sanctuary from the 5th century dedicated to the Savior and the Assumption. Later, a defensive tower dating from around 1000 was adapted and incorporated into the religious structure.

The church is dedicated to Saint Martin of Tours, shown above the main door. Since 1583 it was a collegiate church under Archbishop Carlo Borromeo, heading 17 parishes, and a college of clergy funded by Stefano Maldotti's 1476 will lasted until 1798. The wooden Nativity carved by Giovanni Angelo Del Maino around 1515 is kept in the sacristy.

The church faces the town hall on Treviglio's central square, with the entrance on the west front and the Gothic chapel immediately to the left of the doorway. The bell tower, raised around 1000 as a civic tower, stands beside the building. Look for the wooden Nativity carved by Giovanni Angelo Del Maino around 1515, kept in the sacristy rather than the nave.

The bell tower was originally a Romanesque defensive tower, only incorporated into the building in 1482. This conversion shows how medieval structures were repurposed for religious use.