Constantin's Bow is a triumphal arch in Rome, situated between the Coliseum and the Palatine ..
He was built by the Roman Senate to commemorate at the same time Constantin's victory against Maxence on October 28th 312 as well as his 10 years of power.

Inaugurated on July 25th 315, it is the last one of the series of triumphal arches in Rome, in which he distinguishes itself by his systematic use of re-use of previous monuments