The church preserves important paintings: the fragmentary fourteenth-century triptych with Pope San Sisto between San Lorenzo and a Martyr Saint, Redeemer and Prophets in the cusps, received here from the destroyed church of San Lorenzo di Conca, attributable to the same painter of the large painted cross of San Michele of Moriano; the two panels, also from the older church, one fragmentary with Saint Mary Magdalene, and the other with a Saint Bishop and Saint Bartholomew – recognized as side panels of a triptych by Giuliano di Simone which had the Madonna del Latte in the center of Moriano Castello, datable to the mid-ninth decade of the fourteenth century. The Eucharistic tabernacle by Antonio da Massarosa (1495) is interesting.
According to tradition, Maestro Giacomo Puccini used to come frequently to Bargecchia to hear the bells of the church of San Martino ring. According to tradition, this melody was inserted by the composer at the end of the first act of his opera Tosca.
