It stands on a small plain in the hills between the Lower Metauro Valley and the Lower Cesano Valley, looking out towards the Adriatic Sea in one direction and the Apennine mountain range in the other.
According to ancient tradition, Piagge was founded by survivors from the Roman settlement of Lubacaria, which was destroyed by Alaric's Gothic army. Remains of the settlement have come to light in the nearby village of Cerbara. After a period during the Middle Ages under the dominion of the Benedictine abbey of San Paterniano in Fano, and later under the rule of Fano itself, the town of Piagge became part of the vicariate of Mondavio in the second half of the 15^th Century. Subsequently, together with Mondavio and the surrounding villages, it joined the territory of the Duchy of Urbino until it was passed to the Papal State in 1631. Of interest to the visitor of today is Piagge's fortified escarpment wall which remains in a fairly good state of preservation. Most of the area inside the wall is covered with houses. Above it soars the town's sleek Torre dell'Orologio, a bell tower made from a much earlier tower. Also inside the village is the 19^th Century parish church of Santa Lucia which replaced a much older church demolished in 1882. Inside it is a beautiful 17^th Century painting of "The Last Supper" by Gianfrancesco Guerrieri of Fossombrone (formerly in the church of the SS. Sacramento), and an interesting "Crucifixion" by Carlo Magini of Fano, dated 1768.
Among the town's yearly events is a fair which was started recently and is dedicated to local food and a display of local crafts.