The only thing left to have the building closed-in are the doors. They should be installed next week, but the wide roll-up doors still haven't been delivered.
The crew left windows open in the cupola. Now they are gone, with their lift and ladders. I have no idea how we are going to close those windows.
Edited 3/8/17 to show you how Marvin and his brother solved this problem and got the windows closed.