Furnishings
Small pieces of stained glass are set deep within the walls, which are sometimes ten feet thick. The glass glows likes deep-set rubies and emeralds and amethysts and jewels of all colors.
Because it is a pilgrimage chapel, there are few people worshipping at most times. But on special feast days, large crowds of thousands will attend. To accommodate them, Le Corbusier also built an outside altar and pulpit, so the large crowds can sit or stand on a vast field on the top of the hill. A famous statue of the Virgin Mary, rescued from the ruins of the chapel destroyed during WWII, is encased in a special glass case in the wall, and it can be turned to face inward when the congregation is inside, or to face outward toward the huge crowds.
Read more about this topic: Notre Dame Du Haut