Athens Epidaurus Festival in Athens/Epidaurus
Athens Epidaurus Festival has run since 1955, splitting a summer programme across two venues, the Odeon of Herodes Atticus in Athens for music, dance and contemporary theatre, and the fourth-century-BC Ancient Theatre of Epidaurus for classical tragedy and comedy performed largely without microphones, relying on the theatre's original acoustic design.
The Ancient Theatre of Epidaurus hosted its first modern production in 1938, a Sophocles' Electra staged without electric lighting, working only with the fading natural light of the afternoon since the site had no power supply at the time.