Arco de Constantino is the triumphal arch in Rome, situated between the Colosseum and the Palatine Hill. It was erected to commemorate Constantine I's victory over Maxentius at the battle of Milvian Bridge. The arch is 21 meters high and 25.7 meters wide. It has three archways, the central one being 11.5 meters high and 6.5 meters wide. The lateral archways measure 7.4 meters by 3.4 meters each. The top (attic) is a brickwork riveted with marble. The attic plays a very prominent role for it holds the different memorable inscriptions and reliefs. There is a staircase entered from the door at some height from the ground and ends at the side facing the Palatine Hill. (Rome, Italy / 2009)