There are two architectural elements that I love about this chapel--the windows/doors on the north and the overflow on the south.
These doors are stunning. I'm not sure if they're used. The building has been remodeled numerous times, and even during times of general architectural sensitivity, like in 1970, the stained glass has remained.
Finally, the overflow (which you can see on the left side of the chapel in the top photo) is a classroom with a divider that opens. There is no glass, so it doesn't function as a cry room. It looks like chairs are just set up and the divider is opened. The cultural hall is in a different part of the chapel, so they had to use this as their option. I like the idea.