(Greenland Square Zifeng Tower) referred to a building or violet purple peaks peak height of 450 meters is building the world's seventh, China's fourth, the mainland's second tallest building (as of 2013). 

Zifeng Tower in Nanjing Gulou District, the developer is Shanghai Greenland Group and Nanjing State-owned groups. Zifeng Building site is located in Gulou Square, East Central Road, West Beijing Road, the surrounding area has Xuanwu Lake, Beijige, Drum Tower, Ming City Wall and other historical relics; commanding heights of the lot is the center of the main city of Nanjing and the city , panoramic view of the surrounding vista: Purple Mountain overlooking the East, the West is expected to Yangtze River, south Yuhuatai, north shogunate Hill. December 18, 2010, was officially completed.