That's the kind of building I meant - if I used the term brownstone incorrectly, my apologies. I know firefighters hate these buildings because the poorly-anchored facades crumble so easily, the structural timbers are old and often treated with creosote and other materials that are highly flamable and give off highly toxic fumes when burned, and because so many of them have few exits and narrow winding hallways and stairwells, all poorly lit.