For the past few years out holidays have been to fly somewhere for a week, enjoy the sun and then fly back. But next year (maybe the next few years!) we want to try something different and tour around Europe for a few weeks in the summer holidays.
At the moment we're flexible about where we cross into Europe, but we'll be looking mainly at Western/Southern Europe - so France, Spain, Portugal, Germany, Italy, Belgium, Holland, Switzerland etc. Not necessarily all next year!
The DCs will be aged 12, 9 and 5. And we're looking for a variety of places - e.g. places which are historically/geographically interesting, fun places and some relaxing chill-out spots! 
so, what places do you think we should put on our list?