Rab is a Croatian island in the Adriatic Sea. It’s known for the old town of the same name, encircled by ancient walls. The town’s 4 prominent church bell towers include the Romanesque tower at the Cathedral Svete Marije (St. Mary) and the tower at the ruins of Sveti Ivan Church (St. John the Evangelist). The monastery at the 16th-century Church of St. Justine (Crkva Svete Justine) is now a museum of sacral objects.