[iheartthed]

Current populations aside, Detroit and Philadelphia are obviously way more like than not. And the two cities are, quite obviously, much closer to each other than either is to a Sun Belt city. The two cities peaked at populations within spitting distance of each other (2M vs 1.85M), and also have very similar land areas (134 sq mi vs 139 sq mi). The architectural qualities in the two cities are different, but the scale is similar.