The Roman architecture built for mass entertainment the amphitheater, bath, circus, stadium, theater, and so forth to understand how and why spectacle entertainments were fundamental to Roman daily life will be explored. We will consider first the art, architectural, and archaeological evidence for these buildings as a distinct class of public architecture, and then reconstruct how these buildings were used in antiquity with the help of various literary sources in English translation. Along the way, we will examine the ways in which Greek forms of entertainment differed from Roman; the levels of violence and types of equipment involved; and the question of amateurism versus professionalism.