A little more FUN. I've posted both of these pics before (separately) but something struck me.
The last train (c.1982) on the old PRR Pittsburgh-Buffalo Mainline. Then they tore it up:
Dad took this Pic of us walking a quarter mile to the right of where the engine is in the above pic about 25yr earlier. (c. '58-'59):
From a double-track Mainline to torn-up in not even 25yr. Not really fun at all.