Leipzig: https://en.wikipedia.org/wiki/Leipzig_City_Tunnel https://en.wikipedia.org/wiki/Leipzig_City_Tunnel Malmö: https://en.wikipedia.org/wiki/City_Tunnel_(

Leipzig: https://en.wikipedia.org/wiki/Leipzig_City_Tunnel https://en.wikipedia.org/wiki/Leipzig_City_Tunnel Malmö: https://en.wikipedia.org/wiki/City_Tunnel_(Malm%C3%B6) https://en.wikipedia.org/wiki/City_Tunnel_(Malm%C3%B6) Proposed lines: https://en.wikipedia.org/wiki/Category:Proposed_rail_infrastructure_in_Europe_by_country https://en.wikipedia.org/wiki/Category:Proposed_rail_infrast... I can't see a Wikipedia category for recent extensions. It will very often make sense to connect the hundred year old station to a new major line, but as with Leipzig and Malmö they also build additional stations in the centre of the city.