WHAT WILL I DO IN PARIS? (1)

I will have some time to roam around Paris while Mary is busy at a conference. July 4-8. So, I'm looking for lots of ideas. Here are some websites I'm exploring:

http://www.bugeurope.com/paris/info.html

http://www.understandfrance.org/Paris/AmericanCommunity.html

http://www.paris-anglo.com/

http://troi.cc.rochester.edu/~tdip/tomsguidetoparis.htm