Day or night, Chicago O’Hare International Airport welcomes plenty of travelers to Illinois. Along with a SIXT rental car, it is your key to experiencing everything the “Windy City” has to offer. If you have some time to kill at this airport, check out the public art installations, eat an authentic deep-dish pizza and maybe even hit the gym! When visiting this city, you will have no shortage of sightseeing options. We recommend visiting the Museum of Science and Industry and taking a cruise down the river to learn more about Chicago’s history.