Constantine's Arch, also known as the Arch of Constantine, is a grand triumphal arch located in Rome, Italy. Built in 315 AD, it commemorates the victory of Emperor Constantine the Great over Maxentius at the Battle of Milvian Bridge. The arch stands 21 meters high and is adorned with intricate reliefs and sculptures that celebrate military achievements and the glory of Rome. The arch is made of marble and features three archways, with the central one being the largest. It serves as a remarkable example of Roman architecture and artistry, blending elements from earlier monuments, such as the Arch of Trajan. Today, it remains a popular tourist attraction, symbolizing the enduring legacy of the Roman Empire.