METRO (subway) AMSTERDAM: info, maps, tickets & fares (2023)
Amsterdam Metro - Transport Wiki
Amsterdam North-South metro line opening date confirmed - International Railway Journal
Open day in Amsterdam metro; Wibautstraat metro station with newspaper headlines, April 23, 1977, metros, metro stations, The Netherlands, 20th century press agency photo, news to remember, documentary, historic photography 1945-1990, visual
Amsterdam Metro Guide | Amsterdam Metro Map
A very WEIRD Metro | Amsterdam Metro Explained - YouTube