The Castello Svevo di Bari, rising with austere strength near the Adriatic shore, is one of southern Italy’s most formidable medieval fortresses. Built in the 12th century by Norman rulers and later expanded under Emperor Frederick II, its massive stone walls and angular towers reflect both military pragmatism and imperial ambition, guarding Bari for centuries against invasions and embodying shifting powers from Norman to Hohenstaufen, Angevin, and Aragonese. Each dynasty left its imprint on the castle’s architecture and legacy, visible in courtyards, ramparts, and vaulted halls that still evoke the weight of history. Once echoing with soldiers’ footsteps, noble ceremonies, and the quieter rhythms of administrative life when it served as residence or prison, today the fortress is also a cultural beacon, housing exhibitions that link Bari’s present to its layered past and standing as a stern yet eloquent witness to Mediterranean history.