Hi, For all of December my son (15) and daughter (17) will be travelling in Europe. I am keen to try and do more than just look at historical building and museums as I know my kids will get bored if we see too many in a row. I have booked flights and tentative intinery is Prague-Germany somewhere-Venice-Rome-Interlaken- Paris- London. In Interlaken we going to try some skiing (so we can "do" something, not just "look" - my son will like that) and in Paris and London my daughter will love to shop. Are there any other things people can suggest that we can "do" or things which teenagers might like to do/see which aren't the usually mentioned touristy ones? (in Japan we went to a Ninja museum/display place which my kids loved) . Thanks so much for any suggestions!