I just watched an episode of Rick Steves in Paris last night and he did a night-time taxi tour of the entire city. Here's the link to the page with the route they took:
http://www.ricksteves.com/plan/destinations/france/floodlit.htmI've never been to Paris, but it looked beautiful. Hope this helps.
Kelly <img src="http://www.traveltalkonline.com/forums/images/graemlins/Smile.gif" alt="" />