Why waste one of Detroit's rare sunny days inside a stuffy art gallery? The city boasts an increasingly incredible outdoor art supply, from an ever-evolving eyeball-grabbing mural district to public sculptures and more. Get a car, hit the road, and check out some of these outdoor works of art. (Many of these spots — and plenty of others — can be found in Art in Detroit Public Places by Dennis Alan Nawrocki, available from Wayne State University Press.)