The Nanjing Greenland Financial Center (, also Greenland Square Zifeng Tower) is a supertallskyscraper completed in April 2010 in Nanjing, China. The 89-story building features retail and office space in the lower section, and restaurants and a public observatory near the top. The tower’s stepping is functional, helping separate these sections.
Marshall Strabala and Adrian Smith, who also worked together to design Burj Khalifa, designed the competition winning building for the Nanjing Greenland Financial Center. The design was taken over by Gordon Gill under the guidance of Adrian Smith throughout the post-competition design of the building complex. The complex was designed while all three of these architects worked at Skidmore, Owings and Merrill.