Before, the windows were beautiful. Now, after all the glass has been cleaned in an acid bath, they GLITTER! As you walk by, they sparkle as if a zillion fireflies are somehow flying inside the glass. The effect cannot captured in an image but is delightfully, wondrously, and magically evident in person. I walk back/forth in the rooms with restored stained-glass, back and forth, with a big smile on my face and a giddiness in my heart.