Even though it's kind of ridiculously over-the-top, the basilica of the Sacred Heart is one of my favorite places in Paris. It wasn't far from where we were staying in Paris, so the day we arrived, we fought our jetlag by taking a stroll over there.
We had overcast, cool weather for most of the trip. The one time it really poured was the morning I'd earmarked for a stroll around the Latin Quarter. It turned into more of a "huddle in a cafe in the Latin Quarter, and then go to the Cluny Museum" kind of thing. But we did enjoy seeing the St. Michel fountain - I got Daniel to snap a picture of me with one of the wyverns:
We waited in vain for a sunny day on which to see Sainte Chapelle. Even on an overcast day, the stained-glass windows are pretty impressive:
We spent a pleasant afternoon late in the trip strolling along the Champs-Elysees from the Arc de Triomphe down to the Tuilieries. Here is the obelisk on the Place de La Concorde:
If you go to Paris, I highly recommend riding the #1 metro line out to Chateau de Vincennes. It turns out that it's not just a directional indicator - there is really a chateau out there, one that was the principal residence of the kings of France in Paris until they all moved over to the Louvre. Because it was abandoned as a primary royal residence fairly early on, it retains much of its original medieval architecture. If you were the sort of person who pored over David Macaulay's Castle as a child, it is a must see.
Just across the street is the Bois de Vincennes, a large public park with a beautiful flower garden. And, at least when we were there, an exhibit of bonsai.
Here's a tiny pink maple tree:
And an entire bonsai "forest":