Bikou Ancient Town, Wen County, Longnan, Gansu: Located in the southeast of Wen County, Gansu, it is known as one of the four famous towns in Gansu, along with Ankou Town, Huating County, Gansu, Maying Town, Tongwei County, and Hongcheng Town, Yongdeng County. In ancient times, Bikou Town was a Ganchuan water and land wharf, where merchants gathered and trade flourished, ranking first among the four famous towns. Today, Bikou Town is simple and natural, with clear water and green mountains and a beautiful environment, like a painting. It is not Jiangnan, but better than Jiangnan.