5. Chester Roman Amphitheatre, Cheshire
This is the only amphitheater discovered in Britain. This site is believed to be the original home to several amphitheaters that were built at the same location. This location is dated to 280 AD. It has not been fully excavated yet. It is an impressive structure designed to hold 8,000 spectators. This amphitheater was primarily used for military training and drills. It also saw gladiatorial combat, cock fighting, wrestling, and bull baiting.