If I was to be more specific, can anyone name the largest ancient Greco-Roman theater-(excluding the Roman amphitheaters, such as the Coliseum in Rome and Verona, as well as the amphitheater in Pompeii). For example, the Ancient theater in Ephesus, as well as the ancient theater in Epidaurus holds up to 15,000 people, though the ancient theaters in Aspendos, Turkey, as well as Orange, France and Merida, Spain appear to be larger in size. A precise or nearly precise answer would be welcomed.