The stairway from the second level up to the spiral staircase seems to be suspended in space. If I correctly recall what the guide was telling us, the supports from the stairway to the ceiling are unnecessary and don't perform any real purpose.
It really is a very photogenic building and it's easy to see why Taffy loves to visit it so much.
I have just discovered that despite spending a few hours with Taffy, I didn't get a single embarrassing photo of her. No group shot either. What a bummer!!
..but what an amazing building.