Visitors to Mountfitchet Castle would be excused for thinking they had been launched back in time. The Norman motte-and-bailey castle and village is a careful replica of what stood on the site almost 1000 years ago. The 10-acre site has everything from halls to homes, churches to chicken coops, falcons to fertility chairs. The site is protected by the Department of the Environment as a national historic monument. Artifacts discovered in excavations of the site reveal its transition from an Iron Age hill fort, to a Roman signal fort, to…