Alexanderplatz station opened on 7 February 1882 on the
Berlin Stadtbahn viaduct from
Charlottenburg to
Ostbahnhof (then named
Schlesischer Bahnhof). In 1926, the station hall, spanning two platforms with four tracks, was rebuilt in its present plain style. Heavily damaged in World War II, train service at the station resumed on 4 November 1945, while the reconstruction of the hall continued until 1951. The first station of the present U-Bahn line
U2, designed by
Alfred Grenander, entered service on 1 July 1913; the station was then the eastern terminus of Berlin's second line from
Potsdamer Platz via
Spittelmarkt. The platforms of lines
U8 and
U5 opened on 18 April 1930 and 21 December 1930 respectively, also built according to Grenander's conception, but in a distinct
Modern style. The U2 station was also renovated after the Alexanderplatz fire in 1972. The eastern entrances were destroyed on 15 March 1945. The U8 station was also a
ghost station during the division of Berlin from 13 August 1961 to 1 July 1990. The stationmaster's offices were also built; these were shifted and walls were removed. The entrance at Dirksenstraße had to be made accessible again, just like the connecting stairs to the mall and to the platforms of Line E. Besides that, the intercommunication staircase was also built towards Line E so that it would go through the dimly lit platforms. Stainallee was renamed a few months after the closure of the stairs. In all cases, the U-Bahn stations had to be recognizable as such on the surface. The U-Bahn logo has been removed in recent years. The station also had to undergo renovation works from 17 May to 30 June 1990 before the full reopening on 1 July 1990. The U2 station was renovated between January and March 2001. The U5 station was renovated between February 2003 and September 2004; it was the western terminus of the line from 1930 to December 2020, when it was extended to
Berlin Hauptbahnhof. ==Train services==