St. Peter's Square (Piazza San Pietro) is a large plaza located directly in front of St. Peter's Basilica in the Vatican City, the papal enclave inside Rome, directly west of the neighbourhood or rione of Borgo.
At the centre of the square is an ancient Egyptian obelisk, erected at the current site in 1586. It was made of red granite and is 25.5 metres tall. The obelisk was originally erected at Heliopolis, Egypt, by an unknown pharaoh.
Gian Lorenzo Bernini designed the square almost 100 years later, including the massive Tuscan colonnades, four columns deep. A granite fountain constructed by Bernini in 1675 matches another fountain designed by Carlo Maderno in 1613.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.