Why we're screaming: Yes, we know gelato and ice cream are different things. But guess what? Wandering the streets of Rome will leave you HUNGRY so we don't care! Giolitti has been serving up ice cream for more than a century, and with good reason. The classy gelateria has pleased customers like the Obamas, it used to deliver to Pope John Paul II (his favorite flavor was the marron glace), and Gregory Peck and Audrey Hepburn visited the shop in Roman Holiday. So save some space for dessert and be sure to try the Nutella flavor.