Thanks for all the ideas, Bill!
If you look closely, I did include some piping, a couple of air cond./cooling units, fans, smokestacks, an incinerator & several types of doors, some closed, & some open, with the suggestion of some interior detail. Not all of the structure have been fastened down, & I plan to do a lot more detailing. I like your idea about the lights...I'll see what I can come up with.
