The
Theatre of Dionysus Eleuthereus is a major open-air
theatre and one of the earliest preserved in
Athens.It is considered the first theatre in the world. It was used for festivals in honor of the god
Dionysus. Greek theaters in antiquity were in many instances of huge proportions but, under ideal conditions of occupancy and weather, the acoustical properties approach perfection by modern test. We know that the theater of Dionysus in Athens could seat 17,000 spectators, and that the theater in Epidaurus can still accommodate 14,000. It is sometimes confused with the later and better-preserved
Odeon of Herodes Atticus, located nearby on the southwest slope of the
Acropolis. Some believed that Dionysus himself was responsible for its construction.