Greenland Group Suzhou CenterGreenland Group Suzhou Center is a supertall skyscraper under construction in Suzhou, China by the Greenland Group. It will be tall. Construction started in 2014 and will be completed in 2025.DesignThe building was designed by Skidmore, Owings, and Merrill. It has a 30-floor operable windows and a center atrium that divided the building's interior into the east and the west rooms, which was designed to improve the tower's ventilation.