My major was in psychology. I cannot do this accurately. There are flying buttresses outside but she can't see them :( There are pillars of ice formed into columns to hold the other floors up. The walls are carved in a pattern that makes them look like brick, but you can't see through those either. This is all I know about buildings—

There are plenty of sconces! She pulls them. They are very fucking cold to the touch.

She opens one of them and falls into a hallway! Yaaaaay!