Charlotte's downtown was a lot like that for a long time; it's only in the last 15 years or so that a huge effort has been made to give it more variety/nightlight/whatever. The airport is a huge one, comparatively speaking, like in the top 15 in the world in terms of traffic.

The last time I went to Jacksonville was aaaaaages ago, back when my grandmother lived in Lake City, but she moved to the mountains of North Carolina ten years ago, so.