Berlin Bornholmer Straße is a railway station in the Prenzlauer Berg district of Berlin, Germany. It is served by the Berlin S-Bahn and the M13 and 50 lines of the Berlin Straßenbahn.HistoryThe station opened on 1 October 1935 at the junction of the Nordbahn line from Berlin to Stralsund with the railway line to Szczecin (at that time part of Germany and called Stettin) where the eponymous street named after Bornholm Island crossed the tracks. As Bornholmer Straße station lay right at the Berlin Wall, a temporary connection was built on 25 December 1952 as a warning. It was closed on 13 August 1961 and the section to Pankow on the middle track was cut and locked with a gate, turning it into one of Berlin's ghost stations, passed by the western S-Bahn trains from Frohnau and Helligensee all the way to the Nord-Süd Tunnel. The eastern parts remained lonely at that time, and train transport were extended from Schönhauser Allee to Bornholmer Straße, which was opened on 10 December 1961. It was also connected to Hohen Neuendorf from Blankenburg, where it was only a short connection from Hohen Neuendorf to Oranienburg, to provide connections from Oranienburg and Bernau to the East Berlin.After the German reunification, Bornholmer Straße was reopened on 22 December 1990; the platforms for the former East Berlin site were opened on 5 August 1991. Since 1 December 1997 the connecting platforms in Bornholmer Straße were reopened.