chicago is the third largest city in the united state. over three million people live in the two hundred and twenty-five mile area of chicago. the world's first skyscraper was constructed in chicago in 1885 today, some of the world's tallest and most famous skyscrapers can be found in this metropolis. located in the hear of the city is the one hundred and ten-story sears tower, which is among the most well-known skyscrapers
ever built chicago often called "the windy city" it's commonly assumed that this is due to the city's weather, but in the 1990s 11 major cities outranked chicago for. their average annual wind speed.