B.C.
I was there a long time ago, but one of the things I remember was the Louve (see the Mona Lisa), Notre Dame, The Eifel tower, the market along the Seine River. All of those things are in Paris.
There are river cruises in France which will be interesting. The beaches at Nice are a definate thing to see because of how famous they are. If you get to Nice, the country of Monaco is just a hop skip and a jump away.
Be sure to go to the bakeries and try the pastries. Wonderful stuff! I would skip the restaurants in favor of the pastery shops and bakeries.
The one BIG negative about France I remember was the arrogance of the french people. They knew english, but would refuse to speak it or answer our questions or requests for help because we didn't speak french. They would indicate they didn't speak english, until you wanted to buy something and then their english was impeccable. (I graduated from high school in Germany) I have helped several German tourists on vacation here, and was glad to do so. The French were very UNhelpful.
In Germany, inorder to graduate high school (when I was there) you had to be fluent in three or four languages. All european countries were similar, so the educated french knew english.
Study french for the next few months and make 3X5 cards with key words or phrases so you can recognise and speak some French.
I hope you have a wonderful time!!! Good luck to you and yours.