The Chicago Approach first takes place in Wisconsin and later Illinois, where I got to Chicago. It is the most populous city in the U.S. state of Illinois and the third most populous city in the United States.
Chicago is an international hub for finance, culture, commerce, industry, education, technology, telecommunications, and transportation.
The region also has the largest number of federal highways and is the nation’s railroad hub. The Chicago area has one of the highest gross domestic products (GDP) in the world, generating $689 billion in 2018. The city has had several nicknames throughout its history, such as the Windy City, Chi-Town, Second City, and City of the Big Shoulders.
Daniel's American Blog 