This area forms the heart of Rome’s historic center, with the colorful Campo de’Fiori market drawing locals and tourists by day and a party crowd to its bars at night. Bernini’s Fountain of the Four Rivers dominates the elegant Piazza Navona, a lively space with street performers and upscale sidewalk restaurants. Picturesque side streets hide modest to high-end hotels, simple trattorias and artisans' boutiques.