Also known as sky frame, Danxiazhang ancient cliff dwelling structure is positioned in the cave of Danxiazhang semi-cliff on the south bank of Zhangtangjian in the north Water Curtain Cave scenic area of Mount Wuyi. The cliff dwellings are composed of mountain gates, cliff stone ridges, water connection projects, small stone gates, big stone gates, steep stairs and residential areas. The dwelling area covers brick walls, columns, wooden railings, suspended ladders, suspended platforms and cranes (wheels). Dominated by wooden structure, it has pillars but no beams, and it applies the traditional carpenter craftsmanship of piercing and tongue and groove to drill holes on the cliff. It is primitive and rustic in style. The building is high in the east and low in the west. It has a total of four caves (aka ABCD) with caves being linked with slopes high and low that are of different sizes. It is 108 meters in length, 2.5 to 17 meters in depth, and 2 to 5 meters in height. Three stone carvings with more than one hundred Chinese characters have been found in the cave. In the cave, fragments of living utensils such as stovetops, stone mortars, pottery, porcelain, wood, bamboo, grain rollers, embroidered wooden shoes (three-inch golden lotus), and toilets have been detected. It has been proved that Danxiazhang cliff dwelling structure (sky frame) was built as the shelter place for local wealthy gentry fleeing from the Taiping Army’s march into Chong’an from the 7th year of Emperor Xianfeng in the Qing Dynasty (1857) to the 26th year of Emperor Guangxu (1900). 

Danxiazhang ancient cliff dwelling structure (sky frame) is the most intact, typical, and extremely rare precious cultural relic ever preserved, and has extremely high scientific research value for studying the customs of cliff dwellings in South China and for studying ancient architectural art. In May 2005, the Fujian Provincial People’s Government announced it as among the sixth batch of cultural relics protection sites, and it was incorporated in the World Cultural and Natural Heritage List in 1999.