Zifeng Tower vs JPMorgan Chase Tower

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Zifeng Tower (Greenland Center-Zifeng Tower or Greenland Square Zifeng Tower, previously Nanjing Greenland Financial Center) is a 450-meter (1,480 feet ) supertall skyscraper (special class of skyscraper) in Nanjing, Jiangsu. The 89-story building finished in 2010 includes office and retail space up to floor 41. Floors 49-71 feature a hotel, a lot of restaurants, and a public observatory on the 72 floor. The tower's stepping is practical, helping to separate those sections.

The building is currently the tallest in Nanjing and Jiangsu province, the eleventh tallest in China and the twentieth tallest on earth. Architectural firm Skidmore, Owings and Merrill designed the building, headed by Adrian Smith. The Tower occupies an area of 18,721 square meters. The Nanjing Greenland InterContinental Hotel is located within the tower.

Source: Wikipedia

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The JPMorgan Chase Tower, formerly Texas Commerce Tower, is a 305.4-meter (1,002-foot), 2,243,013-square-foot (208,382.7 m2), 75-story skyscraper in 600 Travis Street in Downtown Houston, Texas, United States. It's now the tallest building in the city, the tallest building in Texas, the tallest five-sided building in the world, the 22nd-tallest building in the United States, and the 107th-tallest building in the world.

Source: Wikipedia