Acunzo 1964
If you see a line of hungry-looking patrons between the funicular stations of Toledo and Chiaia, you'll know you are close to Pizzeria Acunzo. When ordering, note that there are few variations of the thickly crusted pizzas—after all, this establishment has been running for 60 years, and its tried-and-tested product is, as onetime diner Isabella Rossellini can confirm, fenomenale.