This might be an odd question but do you need to book your tickets in advance for entrance to The Queen's Gallery?
I know that a lot of the tours that pass through Buckingham Palace have a limited number of spots available so I am a bit worried that if I don't get everything in advance that I will miss something on my trip.
I also want to make sure I catch the changing of the guard because I have heard it is really something to see. I would like to work my tour and the gallery into a changing of the guards viewing if possible. I hope I can cram everything into an afternoon as I will be on a tight schedule.