When we visited Epidauros a long while ago, we had a little experiment. My mother (who loves singing) stood on the central podium and started singing a song. Meanwhile, I and my dad went to the topmost seating rink to hear wether what they say is true. A big climb! We (and the rest of the group) could hear my mother singing clearly.
From (
visit link) :
"The theater of Epidavros in Greece is the most famous and best preserved theater of antiquity, it is also called the "miracle of Epidavros". According to the writer Pausanias, the theater was built in the fourth century BC by the Greek architect Polykleitos, the Younger. However, this is not certain, because other Greek historians claim that the theater was built at the beginning of the third century BC, then it could not be the work of Polykleitos. The tribune originally consisted of thirty-four rows and could accommodate six thousand spectators.
During the Hellenistic period, which lasted from 323 to 146 BC, twenty-one rows were added, raising the stands and doubling the capacity of the theatre. In the center of the orchestra, which has a diameter of about 20 meters, the altar of Dionysus used to be. Unfortunately, none of this has been preserved. The excellent sound makes the theater so unique. Even on the top row, the actors' lyrics are crystal clear."