OK not exactly Wigan as such, but I suppose Earlestown isn't too far from Wigan.
But anyway, a few weeks ago I was waiting for a train back to Liverpool on the Liverpool-Manchester platform at Earlestown; by the way I haven't been to this station in a very long time probably since I was young, but what caught my attention was the station building which I didn't recognise the last time I visited the place. I recalled a home video I had taken in March 1991 as we were waiting for a train to York, on the opposite platform. The video shows the old works (Vickers I think) in the distance, yet this station building, which BTW looks period looking, is nowhere to be seen. I thought that was odd, so I looked up the station (admittedly via wikipedia) and it said this building was the oldest surviving station building in the world. So what happened to it in 1991?, was it relocated elsewhere for a time and then rebuilt back at Earlestown?, or was it a building that had once belong to a disused station and the building was salvaged and rebuilt at Earlestown?.
I also noticed the platform which this building stands on seems to be much wider now, and in 1990 there looked like there were additional lines behind it.