Walls, towers and gates Torre di Federico II The octagonal tower built under Frederick II of Swabia, which is dominant in the middle of a small public garden.
Walls, towers and gates Torre di San Giovanni What remained of the Church of St. John the Baptist. Restored in the '60s and '70s, has a construction of a small Arabic Norman dome in place of the conical spire in majolica that originally surmounted it.