The church of Saint Pietro ad Muricentum o ad Centumuros (Hundred Wals), is so -called in the ancient documents because of the imposing structures, belonging to a Roman villa, which surround it. It lies just outside the village of Montebuono, on a hill dominated by the Sabine mountains and overlooking the Tiber valley. Despite numerous alterations through the centuris, the church still preserves the plan of the original Romanesque structure which recent restoration work has brought to light. The laying of a new pavement revealed a series of rooms, in part reused as ossuaries, which belonged to the Roman villa. The villa is normally konwn as the "Baths of Agrippa" because of a fragment of an inscription.The construction of the church included the re-use of much material of the Roman period. The walls of the villa were only partly destroyed and therefore mosaics, pavements in opus spicatum, wall paintings and a cistern have remerged to give a fascinatingglimpse of some of the rooms belonging to the more luxurious living quarters of the villa, which was clearly a building of enormous dimensions. The church of Saint Pietro was built durig the lively political climate of the twelfth century and is first metioned in July 1105. In the fifteenth century Saint Pietro was still the main church of Montebuono, as attested by numerous legaces and the important series of wall paintings. These were excuted by Jacobo of Roccantica, a pupil of Ottaviano Nelli, although no longer fully visible today they still decorate the apse, where one can see a remarkable Last Judgement, and part of the right nave.