Amphitheatre of Pompeii

The Amphitheatre of Pompeii is the oldest surviving Roman amphitheatre. Seating over 20,000, nearly the size of the Pompeii population of the time. The amphitheatre was, apparently, not just the site of gladiatorial clashes, but sports and entertainment of various forms. It was infamous in its day after a deadly riot in the crowd between the residents of Pompeii and another town, leading to a ten year ban on events at the venue.