The church of the Santissima Trintà di Saccargia is one of the most famous Romanesque-Pisan churches in Sardinia. It was built during the 12th century by the Camaldolese Order and consecrated in 1116, following the donation of Costantino I, Torres's judge. The basilica was part of a large monastic complex of which the remains are visible on the right side of the basilica.
The legend tells of a spotted cow that every day came from a distant pasture to offer its milk to the friars of a convent and used to kneel on its back, in an attitude of prayer, right in the place where the church now stands. From here "vacca vargia" (cow with spotted hair), from the dialect "sa baccarza", then "sa 'accarza", then Saccargia.