Campo Marzio is the 4th rione of Rome, Italy, identified by the initials R. IV. It belongs to the Municipio I and covers a smaller section of the area of the ancient Campus Martius. The logo of this rione is a silver crescent on a blue background.
Piazza Borghese
A plaque bearing the old name Campo Marzo, which was used up until 19th century: the plaque is still located above a side entrance of Porta del Popolo.
Municipio I is an administrative subdivision of the municipality of Rome, encompassing the centre of the city.
Trastevere
Prati
The seat of Municipio I in Via Petroselli.