All of what Denise said plus... The Motown Museum/Hitsville USA - it is right down the street from Submerge. Note that you need to set an appointment time to go to Submerge to see the exhibit and shop. Info should be on the website. Well Done Goods - cool shop to get Detroit shirts and the like to bring back home. Right around the corner is the Transmat loft where you can get your picture taken in front of the sweet door with art work done by Adbul Haqq. I think there is a Sound Signature party at Marble Bar that weekend and Planet E at TV Bar too.
Have fun!