I am currently doing a project about Detroit and Fisher Body 21. And want to find the floor plan of Fisher Body 21, don't know if anyone here got any...becuase I found quite a lot of photos online, but couldn't find any plans of it.

Another thing I would like to know is about downtown Detroit. I know there is an Auto show every year and there should be quite a lot of people come to visit. So except the Auto show period, is there not much people walking around in the city and downtown?

I think you guys may know detroit more than me and could provide some useful information.

Thanks so much~!