St George's Gardens is a quiet former burial ground near Bloomsbury and King's Cross, now used as a small public garden. It is a good place to sit between museum visits, with old tombs and monuments giving it more character than a standard pocket park.
Among the burials is Elizabeth Cromwell, daughter of Richard Cromwell and granddaughter of Oliver Cromwell. The gardens are modest, but they are a peaceful detour in a busy part of London.