The London Stone

No one is truly sure of the origin of the London stone; it is possibly a Roman stone used to mark the centre of London from which they measured all other distances … but that's only conjecture. It has simply, over many centuries, become famous in its own right. In Georgian times it rested in the hollow stone shown against the south wall of St Swithin's church, Cannon Street where it had been resting since the late seventeenth century. Before that it had been fixed upright in the ground and fastened with bars of iron.