Come in, little archives... You will soon be safe in here. In nice grey boxes on your nice grey shelves, within your nice grey walls.
Strongrooms should always be boring and grey. It's much better than picturesque. And that's why we don't often give tours of secure areas; they really aren't as exciting as you might think. It's what you can do with the stuff inside that is thrilling. Except to me, because this is the culmination of 6 years of meetings!