just back from France with a 13 and almost-10 y.o., I can suggest you Parc Asterix, near CDG airport on A1 motorway. It's a French version of theme parks, full of exciting rides, funny shops and restaurants, and filled with music and entertaining.

Throughout France, my children enjoyed the still-life reconstructions with wax characters of interiors of castles or monasteries, the sort of thing you can find at Musee Grevin in Paris or Madame Tussaud's in London. Happy travels

Paolo