Vroma Project
V Roma: Arch of Septimius Severus
Short description and picture of the arch of Septimius Severus found near the Capitoline Hill in the Forum Romanum. Includes the famous story about Caracalla and Geta, Severus' feuding sons.
University of Chicago
Encyclopedia Romana: Arch of Augustus
This site from the Encyclopedia Romana provides a short but informative description of the arch of Augustus which no longer stands but was erected in the Roman Forum. Gives coin evidence of the arch as well as literary evidence.