One of the Midwest's biggest theme/amusement parks, Six Flags is located midway between Chicago and Milwaukee on I-94 in Gurnee, Illinois. The park has more than 100 rides and attractions and is a favorite of roller-coaster devotees. There are a whopping 10 of them here, including the nausea-inducing Déjà Vu, where riders fly forwards and backwards over a twisting, looping inverted steel track, and Superman, where you speed along hanging headfirst (with your legs dangling). Other don't-miss rides for the strong of stomach include the Iron Wolf, where you do corkscrew turns and 360-degree loops while standing up, and the American Eagle, a classic wooden coaster. Because this is a place that caters to families, you'll also find plenty to appeal to smaller visitors. The Looney Tunes National Park is full of kiddie rides with a cartoon theme; other worthwhile stops include the double-decker carousel and bumper cars. Six Flags also has live shows, IMAX movies, and restaurants. If you take the trouble to get out here, allow a full day.