Inside the Antwerp Central Railway Station, Belgium
(via 22 Train Stations from Across the Globe - Kathika Travel Website : Kathika Travel Website)
Paris, France:
Porte Dauphine Station on Metro Line 2. The other surviving Guimard-designed art nouveau station in addition to Abbesses is Porte Dauphine, and this one’s even older.
(via The Most Beautiful Metro Stations in Paris | WhyGo Paris)