Filming Of Transformers 3', Chicago, United States

Chicago is partitioned into four main sections: Downtown (which contains the Loop), the North Side, the South Side, and the West Side. In the late 1920s, sociologists at the University of Chicago subdivided the city into 77 distinct community areas. Downtown is the center of Chicago's cultural, commercial and financial institutions, and home to Grant Park and many of the city's skyscrapers. Many of the city's financial institutions are located within a section of downtown called "The Loop", which is an eight block by five block square of city streets that are encircled by elevated rail tracks.
The North Side is the most densely populated residential section of the city and many high-rises are located on this side of the city along the lakefront. Lincoln Park is a 1,200-acre (490 ha) park stretching for 5.5 mi (8.9 km) along the waterfront and is also home to the Lincoln Park Zoo. The River North neighborhood features the nation's largest concentration of contemporary art galleries outside of New York City. As a Polonia center, due to the city having a very large Polish population, Chicago celebrates every Labor Day weekend at the Taste of Polonia Festival in the Jefferson Park area.