The Arch of Constantine (Arco di Constantino in Italian) is located between the Coliseum and the Palatine Hill. It was erected in 315 AD to commemorate Emperor Constantine’s victory over Emperor Maxentius at the Battle of Milvian Bridge in October of 312 AD. The well-preserved triumphal arch stands over 68 feet high and almost 85 feet wide. It contains three archways. It is richly decorated, but actually contains parts and statues from earlier works and buildings (a common practice during the time).

The Arch of Constantine is special for several reasons. First, it is the latest of the three triumphal arches in Rome (Arch of Severus and Arch of Titus being the others). Second, it is a reminder of a civil war between two Roman emperors, not a war against a foreign enemy. Lastly and probably the most recognized, it is a symbol for Christianity. Constantine was the first Roman emperor to proclaim Christianity.

Legend has it that Constantine had a dream before the battle of which he saw a vision from Christ. He contributed his victory to the power of God, and converted to Christianity. Afterwards, he declared an end to the persecution of Christians and imposed Christianity as the preferred religion of the land. This has remained until present day with Christianity being the overwhelmingly predominant religion in Italy, practiced in the form of Catholicism. The triumphal arch of Emperor Constantine marks the beginning of the religious shift throughout the land.