"On that occasion a series of spectacles was given, with marked success, in the theater of Dionysos"

The Theatre of Dionysus Eleuthereus is located on the southern slope of the Acropolis in Athens, to the east of the better known and better preserved Theatre of Herodes Atticus (which post-dates Hadrian's visit). Originally built in the 5th Century BC, most of the surviving structure dates to the 4th Century BC.

 

The Theatre of Dionysus Eleuthereus, Athens
Creative Commons AttributionThe Theatre of Dionysus Eleuthereus, Athens - Credit: Dalbera