Arch of Constantine Small 320×268 Medium 640×535 Large 1024×856 Download Tiff Original 2400×2007 | (2.0 MB) Description The Arch of Constantine is a triumphal arch in Rome between the Colosseum and the Palatine Hill. Keywords Arch of Constantine, Italy, roman architecture, Rome, Triumphal Arch Galleries Italian Buildings and Monuments, Roman Architecture Source: William F. Allen Ancient History for Colleges and High Schools: A Short History of the Roman People (Boston, MA: Ginn and Company, 1890)