Scroll down to learn about the Worlds Tallest Building, and also about Willis Tower (shown above), the tallest building in the United States.
1 Burj Khalifa in Dubai: 828 m / 2,717 ft
2 Abraj Al Bait Towers in Mecca, Saudi Arabia: 601 m / 1,972 ft
3 Taipei 101 in Taipei, Taiwan: 509 m / 1,669.9 ft
4 Shanghai World Financial Center in Shanghai, China: 492 m / 1,614 ft
5 International Commerce Centre in Kowloon, Hong Kong: 484 m / 1,588 ft
6 Petronas Tower 1 in Kuala Lumpur, Malaysia: 452 m / 1,483 ft
7 Petronas Tower 2 in Kuala Lumpur, Malaysia: 452 m / 1,483 ft
8 Nanjing Greenland Financial Center in Nanjing, China: 450 m / 1,476 ft
9 Willis Tower in Chicago, Illinois, USA: 442 m / 1,451 ft
10 Kingkey Finance Tower in Shenzhen, China: 442 m / 1,449 ft
Shown above: The looming Willis Tower (formerly known as the Sears Tower) in Chicago, Illinois, is the tallest building in the United States, and is also the only building in the United States that is listed among the ten tallest buildings in the world.
Measuring more than 1,450 feet from ground to rooftop, the Willis Tower is home to a staggering 110 stories of corporate offices, with more than four and a half million square feet of floor space.
The Willis Tower Skydeck is an observation deck located on the 103rd floor. It only takes about 45 seconds to get there in either of two specially designed high speed elevators.
The Skydeck is a world famous tourist attraction that overlooks the plains of Illinois and across Lake Michigan to the states of Indiana, Michigan and Wisconsin.
Tourists with unusually strong stomachs can experience for themselves how the building sways to and fro on a windy Chicago day.
The Willis Tower is located at 233 South Wacker Drive, in the city of Chicago, Illinois. The zip code is 60606.
Above: Burj Khalifa, the World's Tallest Building, located in Dubai, UAE
image credit: cestovani.cz
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