Is situated just in front of the Colosseum. The largest of the arches erected in Rome, on the route followed by triumphal processions of antiquity between the Caelian and the Palatine hills, is 21 meters high, almost 26 meters wide and more then 7 meters deep.
The arch was built in 315 AD by decree of the Senate and the Roman people to celebrate the 10th anniversary of Costantine?s ascent to the throne and his victory over Maxentius in the Battle of the Milvian Bridge in 312.
For decoration of the arch, a number of reliefs and scupltures from other monuments were employed.

