What used to be a city port where storehouses held goods at the time of Augustus in the 19th century, became one of Rome's most verdant and relaxed areas. This old part of the city is full of old houses, funky medieval churches, non-tourist restaurants... and there's so much to see and do while feeling like a real local. Have a romantic walk or relax in one of the many cafés or trattorias that are not only cheaper, but more authentic than the ones downtown.