The small village of 'Il Santo' consists of a church and two farmhouses. These settlements, castle, village, and church close to each other, are characteristic of the early Middle Ages. The church is dedicated to S. Apollinare, a clear testimony to the Byzantine presence in this place. In fact, Apollinare was the favorite saint of the Byzantines, who remembered him with a wonderful Basilica in Ravenna. It is likely that S. Apollinare was built during the time of Bishop Adalberto, who came from the Ravenna Diocese. It is not excluded that the church was also built between the 6th and 7th centuries under the pontificate of Gregory the Great. The church has recently been restored by the Arezzo Superintendent and a 12th-century Crucifixion found during the restoration and the elegant lines of the 18th-century oratory can be admired again.

The church was located on an important communication route between Valdarno and Casentino, the Via Maior that came from Castiglion Fibocchi, passed through Spedale, Migliarino, and Belfiore, and then arrived at Lorenzano.