We can travel back in time and trace history by visiting the aged architectures in Dadaocheng, reminiscing the atmosphere of prosperous streets in the late Qing dynasty and the Japanese colonial period, retrospecting the clues in letters of Dadaocheng merchants in 20th century and investigating the textual and non-textual references that carried memories. In this time traveling special exhibit, in addition to introducing Zhuang-yi-fang Store, Guo-yi-mei Store, Jin-tai-heng Store,Qian-yuan Pharmacy and Lin-fu-zhen Storethere is also an introduction of other customers of Tai-yi-hou like San-yi-long in Vladivostok, Zheng-tai-mei in Singapore, Chang-ji Hong in Fuzhou, Chian-sheng-chuang in Hong Kong, etc. With these historical records, let us experience the joy of traveling back in time!