If you have a friend in town, check out MOA instead of Rock and Roll Hall of Fame! This might just be the new area to hang around, with the MoA, Botanical Garden, MoCA, Natural History Museum, etc...
Definitely a spot worth checking out. I don't really quite get art, but I've been here three times already... and now I'm just waiting for the renovations to be done with so I can experience the whole MoA.
I love that this museum is free and the feel of the museum is so great. There are great exhibits with such lovely and friendly staff. The exhibits are well thought out (although I sometimes get lost in here) and there's every type of art from contemporary to paintings to sculptures to portrait. Even better, there's also new exhibits going on (like Rembrandt art coming soon).
As an University of Michigan alumni, I also got the pleasure to play a scavenger hunt in the MoA that was set up by the MoA staffers (thank you!) and that just made my experience here with better!