The Basilica della Santissima Trinità di Saccargia stands in open countryside near Codrongianos, in the Sassari-Logudoro region, visible from the SS597 road. Built in 1116 by Camaldolese monks on the site of an earlier Benedictine monastery, it is widely regarded as one of the finest examples of Pisan Romanesque architecture in Sardinia.
The church is immediately recognisable by its alternating bands of white limestone and black basalt, a technique brought by Tuscan craftsmen that gives the façade and campanile their distinctive appearance. The single-nave interior, lit by small openings in the side walls, preserves a rare 12th-century fresco cycle in the apse depicting Christ in Majesty, the apostles, and scenes from the life of Jesus.
The name Saccargia is thought to derive from the Sardinian s'acca argia, meaning