The Amphitheatre at Salona was designed to hold eighteen to twenty thousand people at any one time. One notable feature of the Amphitheatre, not found in other Roman amphitheatres, is the underground channels. Many theories have been put forward as to their usage but the most commonly accepted explanation for the underground channels was for the presentation of mock naval battles. The Amphitheatre at Salona islocated in the eastern area of the ancient city of Salona (Solin).
Ancient, Theatres - Amphitheatre