This tour is copy-and-pasted from NY Mag's Detroit Tour suggestions: http://nymag.com/travel/weekends/detroit/index4.html . And I quote: "Take a break from food tourism and spend a day checking out the city’s renegade public-art scene."
Home to the cycloFox (resident red fox often see during cyclocross events) Historic Fort Wayne is a must-see. It is also conveniently located near some of the best authentic Mexican food you will find in Michigan, which you will need after exploring the site.
A quick guide on things to do when spending the weekend in Detroit Best of restaurants, festivals, and art. Deals: https://www.groupon.com/local/detroit/things-to-do
Corktown recently got some brand new bike lanes as part of a program funded by the Kresge Foundation. Along the path you'll also find brand new bike racks at some great places to check out and/or eat and have a drink at (they're not all in yet, but on their way). This is a bike tour of the places with racks (or soon-to-be racks :-)).