Hua E Building, a cultural relic site under the protection of the provincial level, is located in Lianfeng Village, Dadong Town, Dapu County. Hua E Building is a circular structure with civil structures. The walls of the building are made of raw soil, and the roof is made of wooden beams and gray tiles. The whole building only has one door for access. The door frame is made of thick and wide granite slabs, and the door panels are nailed with thick iron sheets. The door and window facilities are specially designed to resist the intrusion of outsiders. The entire earth building has a reasonable layout, being ventilated, bright, and warm in the winter, and cool in the summer. There are still more than ten households surnamed Lin in the building.