M-Bahn Berlin - a short-lived monorail or Maglev (magnetic levitation) train that travelled along an approximately 1.6km stretch from the lower tracks of the U-Bahn station Gleisdreieck (now the U2) to Kemperplatz via the station at Bernburger Strasse (approximately where the U2 station Medelssohn-Bartholdy-Park is today) - Screenshot from the YouTube video Die M-Bahn in Berlin | Industriefilm aus 1985
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