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While Romans consider these neighborhoods central, they are off the beaten path just enough to be little-known to tourists—and to have retained their unique characters, from the well-heeled, flower-draped residential quarter of the Aventine to the traditional-yet-trendy riverside neighborhood of Testaccio. For travelers with a little extra time (or who simply want to see a Rome beyond the Trevi Fountain and Spanish Steps), making a visit to these areas allows a glimpse into what the Eternal City really means for its residents.