Out of the subway line 4, DenfertRocherale station and cross the road. The queue started at 2 pm, and I didn't go in until 4:30. There were more people. It was hot and sun-dried outside. It was very cool to go inside and walk down the tunnel. It was better to bring a shawl or a thin coat. The passage of the squat takes half an hour, and the two sides are full of squats. It feels shocking. Because I have seen the Italian human bone church before, it is more gorgeous. Compared with this, it is so a bunch. I feel almost the same after seeing a few.