Ponte Milvio, is a bridge that connects Cardinal Consalvi square to Ponte Milvio square in Rome, in the Flaminio, Parioli, Vittoria and Tor di Quinto districts. It was built where the river penetrated from the north to the ancient city of Rome: today the urbanized territory extends for many kilometers beyond. It was built along the paths of the Flaminia and Cassia paths, as a forced passage to head north, and also the Clodia and Veientana routes. The Romans call him Mollo bridge because of its peculiarity: when the Tiber is full, it is the first bridge to be submerged. The first mention of the bridge dates back to 207 BC, in connection with the return from the Battle of Metauro during the Second Punic War. The bridge had to be at this time still in wood and its construction must be attributed to a Molvius (belonging to Molvian gens, attested by the sources). In 110-109 BC the censor Marco Emilio Scauro rebuilt the masonry bridge. Four hundred years later in 312, in the gravitational campaigns toward the bridge, the battle between Constantine I and Massenzio was known as Battle of Milvio Bridge or Battle of Saxa Rubra; here, according to legend, Constantine had the vision of the Cross bearing the inscription "In hoc signo vinces" that encouraged him to battle, and the following integration of Christians in the empire. Of the Roman bridge remain the three central arches. The bridge had been damaged by medieval war events (a triangular fortification known as Tripizzone on the base of a defensive tower of the 3rd century) was also built on the northern entrance and was known as the Mollo bridge. In 1429 the first restorations were under Pope Martino V and the work was entrusted to Francesco di Gennazzano. In 1458 wooden parts were removed and the medieval fortification was demolished. In 1805, under Pope Pius VII, other restoration work was entrusted to Giuseppe Valadier. He reconstructed the arches at the ends, which had been replaced by wooden lift bridges, and built a neoclassical tower at the northern entrance. The bridge was blown by Garibaldi in 1849 to hinder the advance of French troops and was restored under Pope Pius IX in 1850. On this occasion was added a statue of the Immacolata, by the sculptor Domenico Pigiani, while there already existed a of San Giovanni Nepomuceno. A group depicting the Baptism of Jesus, located at the southern entrance, was moved to the Atrium of the Museum of Rome at Palazzo Braschi. For some time there has been a custom for young people in love with putting a lock on the central street lamp and throwing keys in the Tiber, imitating what the protagonists of the movie I want for you.