Update2: please vote for this photo on JPG if you are a member over there. Thanks!
Well now, who knew. This one is definitely the most popular photo in my photo stream. Thanks y'all! - update: I also submitted this one to the Musee de L'Elysee as shown here.
Update: Sadly this photo was stolen and used without attribution on the book Houston Quick Escapes. I emailed the author and publisher and was told basically "bummer, go after the guy who stole it and sold it to us." Nice. Apparently theft is profitable even if a photo is Creative Commons. Sheesh.