Answer:
It is where kings, queens, knights and bishops go to war together.
What kind of room doesn't have physical walls?
In birth I spring forth, in life I unfold. In death I wilt and die, but rebirth restores all.
It's shorter than the rest, but when you're happy, you raise it up like it's the best. What is it?
Brings the sky a lot closer.
Dark, feathery, and popular in Baltimore and fantasy books.