Chicago Public Transportation CTA (Chicago Transit Authority) buses and trains are a quick and cost-effective way to get to and around the city. Known as the L (although they can be elevated or underground), trains are a fun way to see The Loop from a new point of view. The best way to get around Chicago is to take the CTA or “L” trains that run throughout the city. While renting a car and traveling outside of Chicago is an interesting adventure, you'll never be bored with what Chicago has to offer, from its fantastic food, inspiring museums, musicals, and plays to iconic sports franchises.
Chicago also has picturesque walking trails, such as the Lakefront Trail that borders Lake Michigan and the Chicago River Riverwalk, in addition to extensive parks such as Grant Park, Millennium Park, and Lincoln Park, which are fantastic for walking. If you are coming from Chicago O'Hare International Airport, the blue line will connect you to downtown Chicago. If you're visiting Chicago on a road trip or planning to take day trips to Chicago during your visit, then this may be an option worth considering. So where exactly is Chicago? Chicago is in the state of Illinois, in Cook County (and a little bit of DuPage) County.