Street Shadows ...

… just outside the Bibliotèque Forney, where we visited an excellent exhibition on "Feeding Paris"--all aspects of how Paris gets its food. Unfortunately I couldn't find a link to an English description of the show, but here's a good video.  The Forney includes a large archive of artistic and graphic works on Paris. It mounts superb exhibitions on specific themes;  we've seen four or five at least. 
Here's the French Wiki page on the Forney