St Swithin, London Stone, Cannon Street, City of London: the London Stone behind its protective iron grille sited in the church wall

NOTES: The London Stone, a piece of oolite from which it is said the Romans measured all distances in Britannia, was relocated to the church of St Swithin Stone in 1769. The church, designed by Sir Christopher Wren in 1686, was badly damaged in the London Blitz of 1940 during World War II and was demolished in 1962, yet the stone was left remarkably unscathed. It, together with its protective iron grille, was incorporated into the south elevation of the building that replaced the church opposite Cannon Street Station.