Life & English: "The birthplace of the skyscraper"

Of the ten tallest building in the United States, four are located in Chicago.

Chicago is the birthplace of the skyscraper.

The Home Insurance Building, completed in 1885, is regarded as the world's first skyscraper. This building used the steel-frame method, innovated in Chicago. It was originally built with 10 stories, a considerable height in the 1800s, to a height of 138 feet (42 m), making it the tallest building in the world. It was later expanded to 12 stories with a height of 180 feet (55 m). The building was demolished in 1931. New York City then began building skyscrapers as Chicago had done, and the two cities were virtually the only cities in the world with huge skylines for many decades.

Trump Tower in Chicago

Chicago has always played a prominent role in the development of skyscrapers and three past buildings have been the tallest building in the United States. Chicago is the third-largest city in the United States now. This is home to 1,315 completed high-rises, 44 of which stand taller than 600 feet (183 m).

Sears Tower

The tallest building in the city is the 108–story Willis Tower (formerly the Sears Tower), which rises 1,451 feet (442 m) in the Chicago Loop and was completed in 1974. Sears Tower was the tallest building in the world from its completion, and remained the tallest building in the United States until May 10, 2013 when it was overtaken by One World Trade Center in New York City. The second-, third- and fourth-tallest buildings in Chicago are the Trump International Hotel & Tower, the Aon Center and the John Hancock Center, respectively. 

Quy Minh edited