Chicago is the most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 census, it is the third-most populous city in the United States after New York City and Los Angeles. As the seat of Cook County, the second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents.
AdTop Rated Chicago Cruise & Sailing Tours! Book on Viator, by TripAdvisor. Quick & Easy Purchase with Flexibility to Cancel up to 24 Hours Before the Tours Starts
Types: Skip The Line Tickets, Museum Tickets, Day Tour, Guided Tours, Bus Tours
The most venerable and polished of the tour-and-activity sites. – BBC