Dachengtang introduced: Dachengtang was built in the late Yuan Dynasty and early Ming Dynasty. The old name "Dachengtang" is rumored to be created by the father of Shen Wansan, a huge rich in Jiangnan, and was one of the most influential pharmacies in the Jiangnan area. Shen Youyuan was a merchant, operating grain, silk, medicinal materials, etc. He knew the way of business, with "sincerity" as the basis, with Dacheng as the way, so he took the name of "Dachengtang". Dachengtang is divided into three parts, the construction area is more than 800 square meters, the size of the house more than 80, in the pattern of "front store backyard", the front store has a head cabinet, two cabinets, account room three people; the back field has a material room, a head knife, two knives, three knives, four people; miscellaneous two people.