It was the third time I had gone to Würzburg, and this time I had gone through the gates and not entered it, and as a place of professional pilgrimage, the beginning of the golden age of physics in the early 20th century, William Conrad Lentchen, the head of the physics department at Würzburg University, discovered X-rays on September 8, 1895. Everything in Lunqin's laboratory was arranged according to the situation of the year, the aisle and the next room were arranged with relevant materials and instruments, and the other rooms were still used as classrooms, offices, lecture halls of the physics department of the University of Würzburg. The past and present magically merge in this building. In addition, the information of ctrip should be wrong. There is no need for tickets here. It is the building of the physics department. It is just walking in. There are fewer tourists and more teachers and students. The building can come out to the neighbor Juliusspital Hospital and Winery to visit, which is also a good place that general travel books will not introduce.