- The Chicago region of Illinois includes frequently-visited places like Chicago, Barrington, Oak Park, Wauconda, Chicago Heights, and Lake Zurich. Chicago is the state’s largest city and the third most populous city in the entire country. Chicago has many nicknames, the most common include “Chi-town,” “Windy City,” and “Second City,” and the city itself is home to several universities, most notable being Northwestern University, DePaul University, and the University of Chicago. In Chicago, visitors are encouraged to visit Millennium Park, Skydeck Chicago’s The Ledge, and so much more.
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