Touring Downtown Detroit During the Grand Prix

There's so much to see and do here! Even if the Grand Prix wasn't in town. From taking the (free!) public rail systems to visiting a 4-story bookstore to eating a coney dog to marveling at the architecture to enjoying a good drink to seeing a Lions/Tigers/Red Wings/Pistons game, Detroit has lots to do.
And don't forget to stop off at the Heidelberg Project.