- Chicago is located in the state Illinois in the USA.
- Chicago has a population of 9,157,540 (metropolitan area)
- Chicago is known as the windy capital of the world.
- Chicago is located on the banks of Lake Michigan.
- Chicago's O'Hare International Airport is one of the busiest airports in the world.
- On St. Patrick's Day the Chicago River is always dyed green.
- Lincoln Park Zoo is one of the last free zoos in the world.
- Chicago is home of the Sears Tower - one of the tallest buildings in the world.