Answer:
What doesn't get any wetter, no matter how much rain falls on it?
Half-way up the hill, I see you at last, lying beneath me with your sounds and sights. A city in the twilight, dim and vast, with smoking roofs, soft bells, and gleaming lights.
I dig out tiny caves and store gold and silver in them. I also build bridges of silver and make crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs my help. Yet many people are afraid to let me help them.
A little house full of meat, no door to go in and eat.
What hangs others yet can unintentionally hang itself?
What sphinxes employ and players enjoy.