Introduction to Taiping Qingtan: The Taiping Qingtan, built in the 11th year of Tongzhi in the Qing Dynasty for fire prevention, is well preserved and is still used by Zhuang people. The blue vat is made up of five large bluestone slabs and four stone pillars connected together. It is three feet eight inches high, two feet eight inches wide, five feet two inches long, and has a volume of four cubic meters. It is still water-tight and there are two lifelike frogs and two crabs carved on the stone pillars. The ancestors of the Zhuang nationality discovered that frogs can sense changes in the weather as well as thunder and rain, and believed that frogs were water gods sent from heaven.