The romanesque basilica of San Giovanni di Sinis is the most ancient church of Sardinia.
Founded in IV-V century over part of the necropolis of the near punic town of Tharros. In IX-XI centuries two aisles with a barrel vault design were added.
The mortal remains of St. Augustine were kept in this church before their final trip from Cagliari to Pavia, where they rest in San Pietro in Ciel d'Oro basilica.
Sardinia is the second-largest island in the Mediterranean Sea (after Sicily). The area of Sardinia is 24,090 square kilometres (9,301 sq mi). The island is surrounded (clockwise from north) by the French island of Corsica, the Italian Peninsula, Tunisia and the Balearic Islands. Sardinia is a constitutional part of Italy, with a special statute of regional autonomy under the Italian Constitution. http://en.wikipedia.org/wiki/Sardinia