Answer:
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
Mary's child slept in one of these
Ambitious people will climb the social version of this contraption.
You can have it, and be at it, But it never lasts forever.
What building has the most stories?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?