Tergu, a small village 10km or so south of Castelsardo, is home to a fine Romanesque church, the 12th-century Chiesa di Nostra Signora di Tergu. Built out of wine-red trachyte and white limestone, it sits in a pleasant garden alongside the few visible remains of a monastery that once housed up to 100 Benedictine monks. Of particular note is the church's facade, a pretty ensemble of arches, columns, geometric patterns and a simple rose window.
