I chose to come to Shuiguan Great Wall because I found that there is also Zhan Tianyou's former residence. When I read Zhan Tianyou, I worshiped him. He was the first celebrity prodigy in my impression. When the Qing government selected dozens of prodigy from the country to study in the UK. I want to come back after I have finished my studies. Among them, he resisted the temptations of foreign countries and worked hard to learn advanced knowledge of the West, not becoming waste wood and traitors, and came back to build the first railway of the motherland (Jingzhang Railway) and became the first famous railway engineer in China (father of modern engineering). In the Shuiguan Great Wall, you can see the Beijing-Zhangzhou Railway at close range. The long high-speed rail and green leather trains are now in normal use and operation. Zhan Tianyou's former residence is just at the foot of the Shuiguan Great Wall. The three rooms in the small courtyard near the Beijing-Zhangzhou Railway. I don’t know if he lived here that year. I have time to climb the Great Wall of Water Pass, but I personally feel that the Great Wall of Water Pass is too difficult to climb. The height of the steps is almost close to my knee. The slope is too steep. It’s no different from rock climbing. I climbed from the foot of the mountain to the first hostile camp and returned to the original road. I was very tired. I met nearby residents who brought a camel up the mountain to get water. I had to go back and forth three or four times a day. The camel was very smelly, but the curiosity was heavy. This place is quite good. It’s not in vain.