Porta Garibaldi is part of Milan's ancient wall and gate system, built along the now demolished Spanish ramparts, also part of Milan's wall system. Located north of the city, it opens along the ancient road to Como. Characterized by the presence of a neoclassical arch built by Moraglia and the adjoining toll booths, it stands in the center of Piazza XXV Aprile, at the mouth of the street Corso Garibaldi.