This has always intrigued me: what if an employee had a meeting on the opposite side of the circular structure? Does the employee actually have to go to the ground floor, walk to the opposite side and then go to wherever the meeting is located on that side of the building? It doesn't seem like the structure will include bridges that connect one side of the building to the opposite side...
Sorry for my stupid question, if this question has been asked before.
Not sure either, but its possible they may be underground.