London
Horse Guards Parade
A major location in the early part of the book, which also has the secret entrance to Bulldog One hidden from public view.
Originally the Palace of Westminster's jousting field in the time of Henry VIII, now it as the centre for Royal Parades such as Trooping of the Colour
On the opposite side of the road is St. James Park leading onto Buckingham Palace.
Horse Guards Parade taken from St. James Park
Various London pictures