Fodor's Expert Review Castello Aragonese

The massive bulk of Gallipoli's castle guards the entrance to the island of the borgo antico, which is linked to the new town by a bridge. Rising out of the sea, the present fortress, dating from the 17th to 18th century, is built on the foundations of an earlier Byzantine citadel. It has four towers, plus a separate fifth known as the Rivellino, where open-air shows are held in summer. A visit allows grandstand sea views, but there's little to see inside between exhibitions.