Near the Giardini Pubblici, the 14th-century Torre Porta a Terra is all that remains of Porta a Terra, one of the two main gates into the medieval city. A stumpy 23m-high tower known originally as Porta Reial, it now houses a small multimedia museum dedicated to the city’s past and, on the 2nd floor, a terrace with sweeping, 360-degree views.

To the south, another impressive tower, the Torre di San Giovanni hosts temporary art exhibitions.