Estación Internacional de Canfranc
Canfranc is an absolutely massive railway station on the border between France and Spain. It was a transfer hub for passengers to alight the standard gauge Franch trains and board the Iberian gauge Spanish trains. It has endless carriage and train sheds, a huge terminal, and is in the absolute middle of nowhere. It never really achieved even a fraction of its hoped for potential and a combination of world wars, landslides, and lack of interest means it eventually became dilapidated. For my birthday in 2023 we stayed in the old railway terminal - now am EU funded and very luxurious 5 star hotel that due to being in the middle of nowhere is not much busier than it was when it served as a railway station. If you want to stay in a luxury hotel for Holiday Inn prices you might get lucky, and if you like old transport infrastructure you might get a few good photos.