Visiting the Earth Hall is not allowed to take photographs. There is a photo wall outside. You can have an addiction here. The library was built for the Christian Science Press and publicized the related ideology. There are 608 pieces of stained glass in the library, each representing 10 latitudes and longitudes. The shape and curve of each piece of stained glass are different, and the baking time of each color is different. Italy and Austria have the richest color and the longest time. When it was designed and built in 1935, glass could be replaced in response to changes at the political edge of the world. Now, in order to protect this work of art, it is no longer updated. The last update was in the 1960s. At the same time, with 206 LED lights for its lighting and sphere shape of the unique reflection echo effect, but also people can not help clapping their hands praise.