Structural configuration: placed in a dominant position and built on the basis of a fourteenth-century oratory dedicated to San Siro which was the first to be erected as a parish in March 1474, the complex of the church of San Siro includes a single nave church with side chapels and polygonal presbytery ; the north side is occupied by the bell tower and the south by the sacristy and two prothyrums are present respectively at the main and secondary entrances. The one on the facade ends against the rock in which the ossuary is inserted which houses an eighteenth-century wooden crucifix. The masonry of the entire complex is plastered and painted, except for the bell tower which is only plastered. Very suggestive elements inside are: the umbrella vault covering the polygonal apse, the only architectural testimony of the fourteenth-century church; the precious fifteenth-century wall tabernacle on the right wall of the presbytery; the high altar in polychrome marble attributed to Carloni, a significant work of Intelvese sacred art from the Baroque period; the bell tower, whose four Romanesque style mullioned windows characterized by the central stone column surmounted by a crutch capital reveal how ancient its origins are (bell towers with the same motif were erected around the year 1000). Construction period: 1476 – sec. XVI
