Orzammar is... dusty? Mind that I've only been there a few times and it didn't agree with me. I find it hot and somewhat stuffy, and it's right on top of the Deep Roads. Last I was there was during a Blight, when the roads are teeming with Darkspawn, so I had terrible nightmares and irritating headaches the entire time for being so close to them. The dwarves also have a very strict caste system and a habit of murdering their political opponents (and really, anyone they don't like) in public.