The Church of Santa Maria di Costantinopoli, known locally as the Chiesa dei Diavoli, is a extra-urban octagonal structure, built in the seventeenth century by the Marquis Gattinara. The upper part of the church is defined by a double cornice which makes the extrados of the vault instantly visible. A bell tower is set on the attic of the brickwork on the southeastern part.   The interior is marked by angular pilasters with Corinthian capitals and round arches; the ceiling consists of a pavilion vault with lunettes set on the octagonal support. The remains of the original altar are on the walls. The Virgin of Constantinople, adored by angels, saints and by the same developer was depicted on the main altar.