My party has just arrived at a large dwarven citadel built into a mountain. I have a couple of ideas to flesh it out already, but I was wondering if anyone has any stories, ideas, experiences, etc. that they could share about Dwarven Citadels to help me out.
One of the things it needs to have is a separate plaza/trading post/merchant's square just outside the mountain where they do business with the outside world. The exact specifications of that are still undecided.
Any help would be appreciated.