Top 40 Tallest Buildings on Earth: #1 is Honestly Insane! #22 Zifeng Tower Advertisements Standing 450 meters tall with 89 floors, this skyscraper was completed in 2010 in Nanjing, China. Advertisements PREVNEXT PAGE The design represents a dragon winding around the tower and features staggered sections that create multiple outdoor terraces. Advertisements PREV NEXT PAGE