Chicago is the third largest city in the United States. It is located on Lake Michigan in Illinois, in the Midwest. The city center is called the Loop and it is the center of business, culture and entertainment. The other buildings of the city are dominated by the 442-meter Willis Tower, which has 108 floors. On the 103th floor there is a terrace, from which you can admire the lake and the entire district. The skyscraper is also visible from afar thanks to two TV antennas. Due to them the total height of the structure reaches 520 meters.
