The romans were the first to use bricks and cement and were able to develop a variety of architect are that can be seen in-their public buildings: The Coliseum, basilicas (Pantheon), arches (the Arch of Titus), Aqueducts (Nimes), and amphitheaters. The romans widely employed, and further developed, the ARCH, VAULT, and DOME, all of which were little used, particularly in Europe. Their innovative use of Roman concrete facilitated the building of the many public buildings of often unprecedented size throughout the empire