Not the world's most beautiful park, but it has an arena and hosts circuses, festivals, rock concerts etc as well as the annual Communist shindig, La Festa dell'Unità (Bologna, naturally, hosts the largest one in Italy). It also has a large car park, on Via Stalingrado.
Via Romita
Bus 25 from the train station or Piazza Maggiore
+39 051 325757
Image by trc.tv