The Church of San Gregorio was built between 1300 and 1325 and is interesting as a typical example of the fusion between Romanesque and Gothic styles in Sardinia. The Gothic style finds its expression especially in the slightly pointed arches, the rose window, and the characteristic mullioned window of the apse. On the other hand, the layout of the facade and the motif of the blind loggia, of Pisan derivation, are in the Romanesque style.