Gare du Sud (South Railway Station) in the northern part of Nice. Yes, the south station is in the north of the city. Don’t ask. This graceful neoclassical station was in use from 1892 to 1991, carrying passengers between Nice and Digne-les-Bains. Although the line is still operational, this particular building was until recently abandoned. In 2017, construction began on an exhibit space in the area where the platforms used to be. It’s not yet open, but from the outside, it looks quite elegant and impressive. Given the revitalized neighborhood around the station, it should end up being a major focal point of the area.
Note: The current terminus of the Chemins de Fer de Provence (Railways of Provence) line is one block behind the Gare du Sud. In contrast to its predecessor, the new Gare de Nice CP is a massive architectural brain fart. The sort of place you forget as soon as the train doors close, assuming you even noticed it to begin with.