The United Kingdom of Great Britain and Northern Ireland consists of England, Scotland, Wales, and Northern Ireland. The Isle of Man and the Channel Islands are British Crown Dependencies but are not part of the UK.
The diner inside is not as seen in the show, but the sign is still there and there's local history behind it. There are framed newspaper clippings and the menu acknowledges the show's three waitresses: Alice, Vera, Flo and the owner: Mel.
Raymond Burr received two Emmy Awards for Outstanding Lead Actor, and Barbara Hale received an Emmy Award for her portrayal of Mason's secretary Della Street. Perry Mason and Burr were honored as Favorite Series and Favorite Male Performer in the first two TV Guide Award readers polls.