Buckingham Palace was built from 1703 to 1705. It is now the office and residence of the Queen of England in London. The administrative headquarters of the royal family is also one of the few royal palaces still in use in the world. By the time we arrived, the shift ceremony had begun. Buckingham Palace is usually not so grand, but we went just before the Royal Army Parade for the Queen's 90th birthday (we went on the 8th and the Queen's birthday parade was on the 11th), which is equivalent to the ceremony of rehearsal or rehearsal. Although the Queen's birthday was on April 21, the Queen changed her birthday to a wayward Saturday in June every year "for weather reasons" and this year, the official day of celebration is June 11.