Tokyo Sky Tree vs Zifeng Tower

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Tokyo Skytree (????????, T?ky? Sukaitsur?, stylized TOKYO SKYTREE) is a broadcasting and monitoring tower in Sumida, Tokyo. It became the tallest construction in Japan in 2010 and reached its full height of 634.0 meters (2,080 ft) in March 2011, making it the tallest tower in the world, displacing the Canton Tower, and the second tallest structure on earth following the Burj Khalifa (829.8 m/2,722 ft).The tower is your primary television and radio broadcast website for the Kant? region; the elderly Tokyo Tower no longer provides complete digital terrestrial television broadcasting protection because it is surrounded by high-rise buildings.

Skytree was completed on Leap Day, 29 February 2012, with the tower opening to the public on 22 May 2012. The tower is the centrepiece of a large business development financed by Tobu Railway (which owns the complex) and a group of six terrestrial broadcasters led by NHK. Trains stop at the adjacent Tokyo Skytree Station and nearby Oshiage Station. The complex is 7 km (4.3 mi) north-east of Tokyo Station.

Source: Wikipedia

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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