Great thread. I second the music museum in the 20th. Very easy metro ride and one of the best museums ever if you enjoy music. You can listen to incredible music being played by most of the instruments as you view them. I could have spent all day there!

So glad to see that the Berthe Morisot paintings at the Marmottan were mentioned. They were so lovely.

Just a couple of ideas I don't think have been mentioned yet...

1. The Petit Palais museum- it has a collection of mostly decorative and objects d'art, and sometimes there are interesting exhibitions. I saw a really good exhibition of Goya's engravings a few years ago, and it was far less crowded than the other museums I had visited that trip. I don't think it's on the average tourist radar.

http://www.petitpalais.paris.fr/en/expositions/now

2. The National Museum of the Renaissance, which is housed in the Chateau d'Ecouen. I haven't been there myself but it's on my list. Quoting from the Blue Guide: "This elegant, well-organized, and less well known museum provides an overview of the decorative arts of the Renaissance in a chateau which itself is a prime example of Renaissance architecture."

Directions (from the Blue Guide): From Paris Gare du Nord to Ecouen-Ezanville (suburban lines direction Luzarches or Persan- Beaumont par Montsoult); then bus 269 (direction Garges Sarcelles) to the Marie d'Ecouen. Alternatively, a 20-minute walk from the station through the woods: a footpath leads to the chateau.

http://www.musee-renaissance.fr/

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This just came back up and, FrenchMystiqueTours, that parc is gorgeous. And yet another reason to return.

bookmarking

ttt

Perhaps they've already been mentioned:

Memorial de la Shoah

Palais Garnier

Basilique St. Denis

Hope you enjoy it if you go there, TDudette, and if you want to bike there you can ask me for tips. It's an easy ride on a bike path.

bookmarking!