Invisible City (1961) remix by Trainluvr 

The original 53 minute film was broadcast in July 1961. There are many interesting scenes interspersed between long and not terribly interesting interviews. The music I inserted is Fall Out by Johnny Hawksworth (UK 1967). Notice how little has changed traffic wise (and won't change).
Full 53 minute TV special • New York The Invisible... uploaded by Moviecraft