Arco del Meloncello offers an interesting glimpse into the area's past. Look up at the imposing walls and try to imagine the events that played out around it throughout its history.
You'll find this historic structure in Saragozza-Porto. Once you've seen all you can at Arco del Meloncello, check out nearby Piazza Maggiore, Stadio Renato Dall'Ara, and University of Bologna.