 Within of Worthing's town centre lie four of Britain's 14 confirmed Neolithic flint mines.The oldest of these mines, at Church Hill in Findon, may be one of the earliest known mines in Britain.Thought to date from the 5th millennium BC and 4th millennium BC, these mines represent some of the oldest mines in Europe, if not the world and predate the great neolithic sites of Stonehenge and Avebury.