Caistor St Edmund, south of Norwich, is one of just three regional Roman centres in Britain which have not been built over. Called Venta Icenorum by the Romans it had a forum, temples, baths, an amphitheatre, running water and defensive walls and ramparts. Suburbs, including a big temple complex, grew up outside the enclosed town. Lime-rich Roman walls which survive at Venta Icenorum at Caistor St Edmund near Norwich have been designated nature reserves. - Credit: Eastern Counties Newspapers Roman temples Temples once stood where sheep now graze at Caistor St Edmund, and have been identified in Norfolk communities including Hockwold, Snettisham and Thetford.