The Port Wall in Chepstow is a late thirteenth century stone wall, which was constructed for the twin purposes of defence and tax collection by permitting users of the town's market only one point of access through the wall at the Town Gate. The wall originally formed a semi-circle extending for some 1,100 metres, roughly southwards from Chepstow Castle to the River Wye. It enclosed an area of 53 hectares, including the entire town and port as it existed at that time. Substantial sections of the wall remain intact.
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Built around AD 90 to entertain the legionaries stationed at the fort of Caerleon (Isca), the impressive amphitheatre was the Roman equivalent of today’s multiplex cinema. Wooden benches provided seating for up to 6,000 spectators, who would gather to watch bloodthirsty displays featuring gladiatorial combat and exotic wild animals.
Long after the Romans left, the amphitheatre took on a new life in Arthurian legend. Geoffrey of Monmouth, the somewhat imaginative 12th-century scholar, wrote in his History of the Kings of Britain that Arthur was crowned in Caerleon and that the ruined amphitheatre was actually the remains of King Arthur’s Round Table.
Today it is the most complete Roman amphitheatre in Britain.