They shot Find the Lady at Bowling Green. I was there when they filmed that scene. We walked all over that area all day (and good lord, it was hot and humid and... *collapses*).

They also shot in Stone Street, IIRC, but that wasn't the part of Stone Street they could've used for Paris, as it looks totally different. LOL

Actually, unless I'm totally mistaken, Keller got shot in Stone Street. *ponders*