Every year we get a glimpse into the royal Christmas when the Queen delivers her annual message at Buckingham Palace — but how is the rest of her famous home decorated, and what about the other royal residences? We've rounded up everything you need to know about royal Christmas decor, from gingerbread snowflakes to a ceiling-suspended tree, and Queen Victoria's glass angels to tinsel and twinkle lights. Find out who does the decorating, where the family's ornaments come from, which members of the family embrace kitsch, and why heavy machinery is involved . . .