Filming Of Transformers 3', Chicago, United States

The name "Chicago" is a French rendering of the Native American word shikaakwa, meaning "wild onion" or "wild garlic," from the Miami-Illinois language. The first known reference to the site of the current city of Chicago as "Checagou" was by Robert de LaSalle around 1679 in a memoir written about the time. The wild garlic plants, Allium tricoccum, were described by LaSalle's comrade, naturalist-diarist Henri Joutel, in his journal of LaSalle's last expedition.
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.