Illinois is a state located in the Midwestern United States. Its capital is Springfield and largest city is Chicago. Illinois has a population of over 12 million people and its economy includes many industries concentrated around Chicago. Some top places to visit in Illinois include Chicago's Millennium Park and The Magnificent Mile. Popular activities include kayaking in Chicago through canyons of skyscrapers and exploring historic Route 66 that runs through the state. Famous people from Illinois include former President Barack Obama, actor Robin Williams, and entrepreneur Walt Disney.