The Parthenon, the temple of Athena, is the major attraction. There is also the Erechteion, whose columns are statues of the female Caryatids, though the original statues have been replaced by copies due to air pollution.
On the southern slopes of the Acropolis lies the Odeon of Herodes Atticus, a Roman theatre with room for as many as 5.000 spectators. It is used during the annual Athens Festival for world-class ballet and music performances. The Dionysus Theatre lies beside Herodes Atticus, and almost all the tragedies and comedies of Ancient Greece were written for this theatre.