Constantine Triumph, built in 315 A.D., is the latest of the three existing triumph gates in Rome. It was built to celebrate Constantine's complete defeat of his powerful enemy, Maxenti, in 312 A.D., and the reunification of the empire. The relief board above the Arc de Triomphe was taken directly from other buildings in Rome at that time. The main contents are the life achievements of the emperors of the past dynasties, such as Anthony, Hadrian and so on. The following is the battle scene of Constantine. So although the Triumph of Constantine is the latest of the three triumphal gates in Rome, we can still see the shadow of early Roman art, which is well preserved and worth seeing. This is a triumphal arch with three arches, 21 meters high, 25.7 meters wide and 7.4 meters deep. Because it adjusts the ratio of high to wide, across the middle of the road, it appears huge. The inside and outside of the Arc de Triomphe are full of various reliefs. On the surface, the huge Arc de Triomphe and abundant reliefs are of great style, but lack of overall concept. The reason is that the various parts of the Arc de Triomphe were not created as a unity, and even most of its components were removed from some memorial buildings in the past, such as the ribbons on the buildings of Tulazhen Square, a series of shield reliefs on Hadrian Square, and eight panels on the Monument to the Emperor Mark & 183 and the Monument to the Emperor Orlo. Nevertheless, it is still a magnificent triumphal arch. Especially the carvings of the important periods of the Roman Empire preserved on it are a vivid history of Roman carvings. It is said that Napoleon came to Rome and saw the Arc de Triomphe, which has become the blueprint of the Arc de Triomphe in Paris, France.