Chicago
Chicago is the most populous city in the U.S. state of Illinois. It is the third most populous urban area in the United States after New York City and Los Angeles. The city is home to several Fortune 500 companies, including Allstate, Boeing, Caterpillar, Exelon, Kraft Heinz, McDonald’s, Mondelez International, Sears, United Airlines Holdings, US Foods, and Walgreens. O’Hare International...