Ages agi, I posted about the way that modernist architects have tried to satck the railway station platforms above and beneath the ground. This makes for a better footprint,
Here is a picture of Limoges stato in France. I know this because it is on the line between Paris and Toulouse, and all the express trains stop there.
I remembered that Limoges station is in an art-nouveau style, although built much later than the original style.