Peking University is unclear. At present, there are two all-night study rooms in Tsinghua. One is in the math building and the other is in our building. You can see it from the east gate. Usually the school is not open to the public, but it doesn't matter if students come in. It is closer to the math building from the west gate, and the building is from the east gate. Because of our professional relationship, we often stay up late to make model drawings, so the building of the museum may be a bit noisy. Other study rooms close at eleven. Hope to adopt.