Big Ben is not the name of a man. It is the name of a huge clock in London.    
    London is the capital of England. This clock has four faces. So, no matter where you stand, you can read the time on the face of Big Ben. Each face is the size of a double-decker（双层）bus. The hands are about four meters long. It is about the size of two people standing on top of each other. If you go to London, you may want to visit the Houses of Parliament（国会大厦）. There you will find Big Ben sits at the top of the clock tower in the Houses of Parliament. Maybe you will hear it as well as see it. The huge clock makes such a loud noise. “Ding dong, ding dong. . .” it goes every quarter of an hour.
    The clock was named after a big man. He was Sir Benjamin Hall. This man did much building work in London many years ago.