Nanjing's earth buildings have their own characteristics, Yuchang Building is one of them. It is the oldest existing earth buildings in Fujian, with a total of 5 floors high, 18.2 meters, and 269 rooms. There are five stairs in the whole building, five big earthen, gold, wood, water, fire, and soil. There are wells in the kitchen on the ground floor, a total of 22, you can visit for free. The pillars of Yuchang Building are crooked east and west, the largest tilt has been 15 degrees, it looks shaky, after 700 years of wind and rain, countless earthquake tests, standing, has become a living specimen of ancient residential buildings.