St Edmund, King and Martyr, is an Anglican church in Lombard Street, in the City of London, dedicated to St Edmund the Martyr. Once a parish church, it no longer is used for regular worship. Wikipedia
No longer used as a church and has now got difficult to visit.
The church is now The London Centre for Spirituality. The doors are usually open on a week day and you can enter and ask if you can look around.
Telephone: 020 7626 9701
Nearest stations: Monument, Bank and Cannon St.