Rome, as they say, was not built in a day. Nor can travelers really experience the Eternal City in a day—or even a year. Rome’s numerous and diverse neighborhoods require some time to fully explore. The best place to start? With a stroll through the city's ancient wonders, including the Forum, the Colosseum, and the Pantheon, followed by a perusal of the food vendors at the new Testaccio Market and a tour of the traditional restaurants—and watering holes—of the Centro Storico. But no matter how brief your trip, be sure to save time for the old Jewish ghetto, the boutique and wine bar–rich Monti neighborhood, and the broad avenues leading to the Spanish Steps. And, of course, stopping for a shot of espresso and a few scoops of gelato is practically a requirement.