Okay - so this is getting ridiculous. Every day now it seems I'm on the SlowTalk Message Board and see something else I think I need to remember for our Paris trip. Something that piques my curiosity, a site I want to see, a book I need to read, a restaurant I want to try. I'm kidding myself if I think I'm going to remember, so instead, I'm going to keep track of them here. Paris - subcategory - Things to Investigate.
So first thing found in this discussion is "the Abbey of St Denis with all its sarcophagi of French kings and queens and its wonderful stained glass windows."