London, UK - We are drawn back

Once was not enough for us to be in London. I have wondered what it is that draws us back. Certainly it is so large that you cannot cover it even in a lifetime, but we really only spend our days in a small area near long the Thames in Bloomsbury, Soho, Westminster and adjourning areas. It may be that it is a city made up of so many different people, or the great history, or the fact that they speak English. We have not narrowed it down. It is a walk-able city and also has a great public transportation system, as does Paris and New York. London also has a sense of humor (or humour) which seems to come through. France has its knowing nod, Rome has its passionate laughter, London has a dry chuckle. We feel welcome there and at home. Maybe it is our Anglo-Saxon roots. We will ponder this and get back to you.