Rose-shaped floral decoration introduction: The second floor above the "corridor" is flanked by two huge stone lattice windows. Adam stands in the middle of the left window, and Eve stands in the middle of the right window; in the middle is a stained glass window, colored The design of the glass windows can be long, round or rectangular, but the round one is the most beautiful. It has a diameter of nine meters (about 10 meters) and is decorated with rose-shaped floral decorations. It is commonly known as the "rose glass window" and is magnificent. The stained glass is engraved with biblical stories, and the former clergy used these images to preach. During World War II, the Parisians were afraid that the Germans would snatch it away, so they dismantled it and hid it.