Half of Roman amphitheatre in Chester, UK, with the other half built over. It was built around 86 AD, and could hold an estimated 7,000 spectators.
Roman amphitheatre
By Hinkkanen @ 2006-02-17 14:24:25
LancelotLink
@ 2010-07-12 07:44:31
Now believed to be location of King Arthur's Round Table. http://www.dailymail.co.uk/news/article-1293657/King-Arthurs-Round-Table--table-Roman-amphitheatre-Chester.html?ito=feeds-newsxml#ixzz0tT45rr00