The church of Saint Maria Assunta lies near the castello of Fianello. It dates from the early Middle Ages and has undergone various phases of construction. The Romanesque crypt is of particular interest, containing re-used material robbed from Roman buildings, including two capitals which readapt two inscriptions, as well as a small column of the early medieval period commisioned by presbiter Florentinus and worked by magister Iohannes. The presence of a simple marble cathedra on the raised chancel is also interesting, and part of the wall paintings which originally decorated the apse are still visible. During the 1950s a series of archaeological excavations were carried out on the Roman villa beneath the church. Today one can see some stretches of wall along the road leading to the cemetery and behind the apse of the church, whilst in the public fountain at the back, one can see part of a roman aqueduct.