Identify.

Arch of Titus, ca 82 CE, built by Domitian in honor of his brother, entrance to forum, celebrates Titus' sac of Jerusalem in 70 CE, joint triumph of Titus and Vespasian (Vespasian called back as emperor), set up as a gift from the Roman people and the senate, have to go underneath the column to see the reliefs, sculpture on the side lost during the medieval period.