Zifeng Tower is a 450-metre (1,480 ft) skyscraper completed in 2009 in Nanjing, China. The 7th tallest building in the world offers first-class office space, a 6-star Intercontinental Hotel, a shopping center, and a number of high-end sightseeing and entertainment options. The 89-story building comprises retail and office space in the lower section, and restaurants, a hotel, and a public observatory near the top(72 floor). The tower’s stepping is functional, helping separate these sections.