You kind sir have inadvertently won the heart of any mother by focusing on what is most important: looking both ways in traffic! I also agree that the Eiffel Tower seems a bit touristy...mais non c'est important, c'est la Tour Eiffel! However I will take your words to heart and if there is not time...then the Tower gets cut. If I had my druthers I'd do Lourdes and Rome...but that trip was a little $$ than I was willing to commit at this time.
I am pleased to note that tha Parisians compensate for proper lane usage with deranged driving...it'll feel like home. Are they still mad at us about...you know...everything?
I think the CMers consensus is definitely the Catacombs. I will have to do that! Thanks so much Peter from Stockholm!