London is a cosmopolitan mixture of the Third and First Worlds, of chauffeurs and beggars, of the establishment, the avowedly working class and the avant-garde. Unlike comparable European cities, much of London looks unplanned and grubby, but that is part of its appeal. Visiting London is like being let loose on a giant-sized Monopoly board clogged with traffic. Even though you probably won't know where you are exactly, the names will at least look reassuringly familiar.