Good points about historical societies, they've helped me out a few times too. Another route is requesting a formal variance hearing—sometimes present...

Plants can help a bit, but honestly, in my experience they're not enough if your humidity issue is serious. Improving ventilation or investing in a sm...

Chamomile can be nice, but from experience, it doesn't handle heavy foot traffic nearly as well as creeping thyme. If you're set on trying it, maybe k...