Roman theaters were modifications of Greek theaters. Roman architects compressed the three major components of Greek stage architecture (theatron, orchestra, and skene) into one. Doing this caused changes to the appearance and placing of the theater. The theaters were generally placed on level ground instead of on hillsides. The backstage area was transformed into one elaborate space, called the scaenae frons, instead of several rooms.The auditorium (in Roman times called Cavea) evolved into a semi-circle and was sometimes separated from the orchestra by a short wall. In some Roman theaters, simple versions of roofs began to appear, and awnings or velums (which can be compared to today's balconies) covered the entire seating area. In addition to theatrical productions, these spectacular theaters were also the sites of circuses, fights of the gladiators, and lion feedings. The fall of the Roman Empire in A.D. 364, led to the abandonment of these theaters.
Theatre of Marcellus