It is located in the old town of Catania, to the west of Piazza San Francesco, between Via Vittorio Emanuele and Via Teatro Greco.
The building is made of concrete, the seats were originally made of limestone and covered with marble, the stairs that divide the cavea are made of lava stone. Still today, the lowest part of the theater is skimmed by the river Amenano and in the past the water was allegedly diverted to the stage for water shows. It was probably built on the area of a previous Hellenistic theater to be used as a Roman theater. It got its final shape in the 2nd century A.D. when the stage decorations and some bas-reliefs and sculptures were made. Later it was restored in order to build a bigger stage and other changes were made to the connections with the orchestra and the backstage.
Of the original theater there are still the cavea, the orchestra and part of the stage.

ODEON.
Attached to the theater there is the Odeon, a smaller theater that was used for choir rehearsals and competitions; it had a half-round shape and a cavea with wedged- steps that are still visible.