I'm in paris for a couple of weeks and I want to find out if there are any interesting exhibits I should check out? Any used equipment stores that are a must-see because of their exotic or unusual stuff? I don't care about your typical store full of old 35mm cameras, unless there are some that are noteworthy for some reason, but if there are places that have an interesting selection of antiques, brass lenses, that kind of stuff, I'd love to know.

I have, somewhere, listed one museum to check out but I can't remember the name of it (have to dig through my email). Otherwise I haven't done much research, as it was sort of a short-notice trip.

Thanks for any suggestions!