Record: 284 m
Zhengzhou Greenland Center is a twin tower complex in Zhengzhou, China. The complex consists of two supertall skyscrapers; Tower 1 is 284 m (932 ft) with 63 floors and Tower 2 is 284 m (932 ft) with 63 floors. When completed, it will become the Zhengzhou's tallest, Surpassing Zhengzhou Greenland Plaza.Website:http://www.gmp-architekten.com/projects/greenland-central-plaza/