Travelers are voting Pompeii, Macellum of Pozzuoli and Villa Jovis as the best of 3 ruins in Naples. There are 30 ruins in Gaeta a city just 43 km from Naples and 30 ruins in Formia which is 44 km distant. The most popular of these are Hadrian's Villa in Gaeta and Colosseum of Rome in Formia. You can find 3 ruins in Campania and 86 ruins in the country of Italy. Our members favorite in Campania is Pompeii and Hadrian's Villa is the top pick in Italy. Want more? Check out our map of ruins in Naples.