Chicago is the seat of Cook County, the second-most populous county in the U.S. Chicago was incorporated as a city in 1837 near a portage between the Great Lakes and the Mississippi River …

Welcome to the official City of Chicago Website. The source for information about City services, departments, programs and initiatives, and officials for Chicago residents, businesses, and visitors.

Jul 28, 2025 · Must-visit attractions in Chicago include the Navy Pier, Wrigley Field, Second City, Skydeck Chicago, and of course, "The Bean." Find more fun things to do in Chicago.

Explore iconic attractions, hidden gems, and travel guides. Plan the perfect Chicago trip!

See what other travelers like to do, based on ratings and number of bookings. Book these experiences for a close-up look at Chicago. These rankings are informed by Tripadvisor data—we consider …

Mar 3, 2026 · Not sure what to do in Chicago? Check out these essential attractions, amazing nightlife and cultural institutions and more.

2 days ago · Chicago is a city, the seat of Cook county, in northeastern Illinois, U.S. With a population of nearly three million, Chicago is the state’s largest and the country’s third most populous city. It is …

Traveling to Chicago? Learn about the city’s top attractions and activities, including dining, nightlife, iconic landmarks, arts and special events.

Affiliate of the Associated Visitors Bureaus.

14 hours ago · The famous Chicago River Dyeing event takes place Saturday, with St Patrick's Day for 2026 falling on Tuesday.