Brindisi Italy is a port city on the Adriatic Sea, in southern Italy’s Apulia region. The red-stone Aragonese Castle stands on a small island at the harbor’s entrance. The tall Monumento al Marinaio d’Italia, a rudder-shaped limestone memorial to sailors, has sea and city views. Across the harbor, the Swabian Castle of Brindisi dates from the 13th century. At the top of Virgil’s Staircase are the Roman Columns.