Introduction to Wang Xichan Memorial Hall: Wang Xichan Memorial Hall is located next to the old gate of Zhenze Middle School. It is a hard-mounted building with three rooms in width and faces south. Wang Xichan (1628-1682), whose courtesy name was Yinxu, also known as Xiaoan and Tiantongsheng, was an astronomer and almanacist. He and Xue Fengzuo, a famous calendar master in the north at that time, were collectively called "King of the South and North Xue" and were highly regarded. There is a seated statue of Wang Xichan in the main hall of the memorial hall, and a plaque reading "Studying Heaven and Man" hangs high in the hall. The front of the screen behind the statue is partially painted with "Along the River During the Qingming Festival", with couplets on the columns on both sides, and an introduction to his life on the walls on both sides.