Up to #136, Feb 13, 2008.
Roman Coliseum, El Jem, Tunisia.
3rd bigger in the world, the best well standing.
This construction could hold between 27,000 and 30,000 people making
it possibly the third or fourth biggest in the Roman Empire after the
Colosseum (or Coliseum) in Rome and that at Capua. Its 427m outside
circumference is 100m shorter than the Colosseum. It was constructed
in the early part of the 3rd century and may well have been the last
such amphitheatre built in the Empire.