Walking a long way from Buckingham Palace, you will see a sea of people in front of you, and you will be shocked by the crowded landscape in front of you. It's also a performance of changing guards in several European countries, but there are absolutely no so many tourists in sight. It seems that the British Empire still has enough influence. There are several layers of people outside the fence of Buckingham Palace, and there are several layers of tourists under the statue of Queen Victoria outside Buckingham Palace. We can only stand across the street and look at it. With the music of the military band, the military band in formal dress and the guards of changing Posts paraded along the road between the statue and Buckingham Palace. The ranks are not neat, the pace is not strong, the military prestige is not mighty, if not uniformed uniforms, it seems a little loose. As the procession entered Buckingham Palace, our watch was over. There was a job change ceremony in the court. We could only hear the military music. Later, another cavalry troop came out of Buckingham Palace, and there were cavalry troop in the guard changing performance, which was an eye-opener for us.