St Martin’s Le Grand, EC2V has a parallel page upon the main The Underground Map (TUM) website including mapping and more detailed information about this location.
Citation information, sources and attributions for text and images used here are available to view on the TUM parallel page.
Image below: An early-nineteenth century Act of Parliament chose a site in St Martin’s Le Grand, City of London for a new General Post Office which established its headquarters on the site of a former monastic precinct in 1829.