The Holy Rosary Church of Sirolo appears almost hidden among the houses of the historical center, situated in proximity of the gothic arch that marks the southern entrance of the village. In gothic style, built between 1603 and 1613, underwent a modest expansion in 1898. To its inside, in an urn of the main altar, in addition to the remains of Peter of Treia, died in 1304 in the Franciscan Monastery of Vetta Marina, are conserved some works of historical and artistic interest like the painting attributed to Pompeo Moranti XVI century depicting the center the Virgin and sides San Nicola of Bari and Sant’Agostino, the Infant Jesus of forgiveness, recovered, from some of the faithful among the ruins of the Church of San Francesco today Villa Vetta Marina.