Sitting in the center of the side of Piazza Maggiore known as Piazza del Nettuno, this marble-and-bronze fountain features a muscular statue of Neptune holding aloft a trident—the inspiration for the logo of the Maserati car manufacturer, which was founded in Bologna—set on a base with circular pools, four spouting sirens representing the four continents, and four cherubs representing the winds. The Fountain of Neptune is a top sight in city walking or bike tours that include Piazza Maggiore, Bologna’s main square and home to the massive Basilica di San Petronio. Bologna is also known for its excellent cuisine, so opt for a food tour if you’d like to combine sightseeing with samples of local dishes.