Yongding County is the birthplace and core distribution area of Fujian Tulou. There are more than 23,000 earth buildings and more than 70% of Fujian earth buildings. Among the six groups and four floors of Fujian Tulou, which is included in the World Heritage List, Yongding occupied three groups and two floors. So choose Yongding here as a postcard card, and it is a good fit.