Theater at Epidaurus - Greece. The theater, dating to the 4th century B.C. and arranged in 55 semi-circular rows, remains the great masterwork of Polykleitos the Younger. Audiences of up to 14,000 were able to hear actors and musicians--unamplified--from the back row of the architectural masterpiece.
The wonderful acoustics for which the ancient Greek theatre of Epidaurus is renowned may come from exploiting complex acoustic physics.The theatre, discovered under a layer of earth on the Peloponnese peninsula in 1881 and excavated,has the classic semicircular shape of a Greek amphitheatre,with 34 rows of stone seats .Its acoustics are extraordinary: a performer standing on the open-air stage can be heard in the back rows almost 60 metres away.via@NickMalkoutzis
Theater of Epidaurus, Greece. The theatre is marveled for its exceptional acoustics, which permit almost perfect intelligibility of unamplified spoken word from the proscenium or skênê to all 15,000 spectators, regardless of their seating.