If you only have 24 hours in Paris I would suggest skipping Versailles. I would highly recommend you see the Musee D'Orsay, the impressionists made me weepy. I also liked Musee Jacquemart-Andre, which is a small but beautiful museum. If you do go to Musee Jacquemart-Andre, or if you find yourself in the 8 arrondissement for another reason, I would suggest you buy a warm quiche at a boulangerie and have lunch in Parc Monceau, which is a beautiful park.

I would second the suggestion to cruise down the Seine in the evening for the beautiful view.

Most importantly, enjoy! Sylvie in Toronto