Introduction to the Di'anmen Fire Temple: The Di'anmen Fire Temple, the full name of which is "Emperor-built Huode Zhenjun Temple", is located in the north of Houmen Bridge in Shichahai and west of Di'anmenwai Street. The temple was first built in the sixth year of Zhenguan Period in the Tang Dynasty. (632), with a history of 1,370 years, it is the only fire temple used by the Chinese royal family. It is also the largest and oldest fire temple among the many fire temples in Beijing.