Theatre of Pompey
The theatre, along with the one at Ephesus, is one of the largest surviving theatres of the Roman Empire with an estimated seating capacity in excess of 20,000. The only other known theatre that is considerably larger was the Theatre of Pompey in Rome. Much of the theatre structure is in ruins due to architectural collapses and extensive quarrying in later epochs, and only one-eighth of the site has been exposed so far. One of the main features at the theatre is its water basin and the elaborate Roman piping system used in it. The recently excavated terracotta system is located along the eastern ground entrance and is well preserved.