Answer:
What building has the most stories?
I tremble at each breath of air, and yet can heaviest burdens bear.
Come up and let us go. Go down and here we stay
The person who makes it has no need for it. The person who purchases it does not use it. The person who does use it does not know he or she is. What is it?
In the night a mountain, in the morning a meadow.
Brings the sky a lot closer.