city bus tours of paris

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

Hi Christine,
... maybe there's a bus that will get you oriented and maybe not. The part of Paris of interest to most tourists is that (small area) which was once within the old city walls - around and near Notre Dame cathedral, generally. The above guide may be of some help - in it click on "TRANSPORTATION" and if you still have questions send questions by email to Tom after clicking on "CONTACT ME"... bon voyage! ...P

I can't recommend any bus tours, as I've never taken any, (usually quite pricey) but I know the local bus #69 is a great way to orient yourself with the central area (along the Seine) of Paris - for only $2! It runs from the Eiffel Tower, past the Louvre, Notre Dame, Bastille, ending at Pere Lachaise.

Here's the route:
http://www.ratp.info/orienter/f_plan.php?loc=bus_paris&nompdf=69&fm=pdf