The church dedicated to St. Sylvester was named together with the castle in 1112 (1). It was rebuilt in 1231 by Bishop Nicolò Maltravesi and rebuilt again in 1681 (20). The particular historical references to the file of the Cell are referred to. The building, in complete ruin, has a slender front oriented liturgically to hut with angular pilasters and upper triangular frontispiece. The architraved portal is surmounted by a three-light window. The interior is in Doric style with anconate columns. The bell tower is concluded with a monofore cell. A beautiful two-way gallery with three-light windows, on a triple arched lowered sixth, connects the Church with the Rectory; this develops a large rectangular building.On the front there are two epigraphs: "N. C. I. - Aedes Canonicales - Ecclesiae P. S. Silvestri P. P. Cellae - A fundamentis - erectae - year 1518 - quas - M. Boninius Archip. - Restauravit year 1856" and "N. C. I. - Michael Boninius Archip. - A fundamentis erexit - year MDCCCLV". The Canonica was recently the subject of a radical restructuring that has preserved the plano volumetric plant. Not far from the church you can see a nineteenth-century civil house, rectangular, covered with four pitches and lights with frieze. Built in 1922 by the Aghinolfi, it is now owned by the Pinetti family.