Sybaris

During my trip to Calabria in 2011, visiting Roman Colonia Copia or Greek Sibari, was one of the astonishing highlights. Amidst a rather depressing countryside, next to a huge EU funded but empty car park, abandoned restaurant and permanently closed gift shop, the Augustian theater is one of the only remaining buildings to visit.

Only parts of the outer curved wall, lowest seats, and footings of the scene building remain. The substructures show about three major building periods. I couldn't find any information regarding its capacity, but the the orchestra measures 20,5 meter and the cavea has a diameter of 68. Comparing this size with other theaters, it might have contained around 5,000 spectators. Just a guess.  

More pictures of Colonia Copia or Sybaris can be found here! More on wikipedia.