Church of St Thomas Apostle (formerly St Thomas Martyr) Southwark, SE1 Parish Church of St Thomas 1136-1862 which also served as the Chapel of St. Thomas's Hospital 1215-1862 Rebuilt in 1703 by Thomas Cartwright & Son (Sometime Master Mason to Christopher Wren) The roof space was used as the hospital's Herb Garret and from 1822 as its Operating Theatre Rediscovered by Raymond Russell in 1956, the Herb Garret and Operating Theatre is now a Museum