A theoretical design for Liz Lochhead's Thebans. The inspiration for this design came from the Theban emblem, two fated figures locked in combat. The gates represent the physical barrier between the royalty in the palace and the commoners in the city, as well as the psychological barrier created by the riddle of the sphinx:
What creature walks on four legs in the morning, on two in the afternoon, and three in the evening?
The Theban emblem weighs heavy on the city representing the destructive consequences of the two squabbling brothers.