Jed Jacobsohn/Getty Images
Matt Grevers, Olympic swimmer, gold medalist: What do you like about Chicago winters? "I don't like the winter. It's hard to swim and train when it's dark and cold and your hair freezes on your head. One of the worst memories I have is going out to my car at 5:30 a.m. and scraping ice off my windshield and it just wouldn't come off. I drove with my head out the window, when it was negative 20 wind chill. My face froze."