Aya Trias Basilica was built in the early 6th century and destroyed during the Arab raids of the 7th century. It was then abandoned, and a small church and other buildings were built to the south. These buildings in turn were abandoned and destroyed around the 9th century. All memory of the basilica disappeared, until it was rediscovered by chance in 1957, when it was partially excavated.
What can be seen of the basilica today is an entrance atrium at the western end of the basilica, (the end furthest away from today's entrance gate). This leads to an entrance lobby, or narthex, spanning the width of the basilica. This in turn leads to a three-aisled nave, with a number of columns still standing. here you can see the remains of a chancel. There is a large central apse and two smaller apses to the north and south. To the southeast of the basilica, you can see the remains of a large cross shaped baptismal chamber, the largest known on the island. It is thought that the other structures you can see here are the remains of the Bishop's Palace.
The narthex and nave are extensively covered with mosaics, mostly geometric patterns. In the northern nave, however, there are some exceptions. In particular, a pomegranate tree, alongside a pair of sandals.References:
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.