Don't know about trade shows, but if you have never been to the
Victoria and Albert Museum in London it is a MUST DO! Quite an
incredible collection that includes jewelry, silver work (utensils,
vessels, etc.), glass, furniture, rugs, clothing, and more. Really
wonderful. When my daughter and I go, we need more than a day to
really "do" the whole thing. They have lockers for storing whatever
you are carrying, and a great (and expensive) restaurant in the
museum. They were doing some renovations when I was there last, a
couple of years ago. I really highly recommend it!
Beth in SC who is now wishing SHE were going to be in London in September!