Introduction to Dashilar: Dashilar is the center of Qianmen Business District, which generally refers to Dashilan Street, Langfang Toutiao, Liangdian Street and Meishi Street. During the Ming and Qing Dynasties, a curfew was implemented at night, and fences were set up on the streets and alleys, which were open during the day and closed at night, hence the name. After nearly a hundred years of development, Qianmen Dashilar has gathered hundreds of shops and theaters including silk shops, pharmacies, shoe shops, restaurants, etc. Langfang Toutiao and Langfang Ertiao were once the jewelry and jade markets; the Jewelry Market Street was home to 29 official furnace houses that smelted silver ingots; there were many money markets and profit shops in Qianshi Hutong, Shijia Hutong, and Xiyanhe; The eight alleys such as Wangguangfu Xiejie and Shaanxi Lane are where brothels are concentrated, commonly known as the "Eight Big Hutongs". Until 1928, the Dashilan area had always been a prosperous place for merchants in old Beijing. Many famous time-honored brands originated here, such as Quanjude Roast Duck Restaurant, Ruifuxiang Silk and Cloth Store, Tongrentang Pharmacy, Liubiju Pickle Garden, etc., until It is still going strong today.