Horseguards Parade

Seen prominently in five episodes of The Secret Service as the London HQ of British Intelligence Service Headquarters Operation Priest.

  • The Secret ServiceA Case For The Bishop
  • The Secret ServiceThe Feathered Spies
  • The Secret ServiceLast Train To Bufflers Halt
  • The Secret ServiceSchool For Spies
  • The Secret ServiceMay-Day, May-Day!
  • UFODestruction