The Peckham Experiment, Pioneer Health Centre, London, 1949

David Tomlin holds his bicycle as stops to talk to Nicholas Morrison with his scooter, in the courtyard of the Pioneer Health Centre on St Mary's Road in Peckham, London, England, 1949. The purpose-built modern building, designed by Sir Owen Williams, was part of the 'Peckham Experiment' which sought to establish whether people would, if given the opportunity, take more interest in their health and fitness and take steps to maintain their wellbeing. (Photo by George Konig/Keystone Features/Hulton Archive/Getty Images)