I happen to be a signalling designer working for Deutsche Bahn. You will see photos of German, British and Japanese railway infrastructure, preferably with trains on it if you follow me.
I add a lot of photos from others to my favourites. If you happen to be one of them, don't be afraid, I just like them. :)
A lot of my photos (but not all, especially those with visible human faces) are CC0 copyrighted, so if you have a use for them, just go ahead and download them!