I also really enjoy exploring old, abandoned infrastructure such as this.

We are lucky enough to have over a dozen of these such areas in our area to explore.

One such place we went last week, I haven't had the time to post any photographs yet due to the weather, however we just went to the Manchester switching yard in upstate New York which at the time was the largest indoor switching yard in the world. Amazing place...

I really enjoy the third image, very sharp with good depth...