We researched a new type of contemporary space, the railway station as a city square. Looking to discover continuity between the exterior city space and the interior station space, we developed a parquet of urban activities: transport, commerce, and culture. We thought of a contemporary Piazza San Marco, with the station as the basilica. A long glass gallery of exchange on three levels parallel to the existing station acts as the common denominator for subways, commuter trains, and TGV international trains.