[Berlin U-Bahn] Zitadelle is a station on the Berlin U-Bahn line U7. It was opened on 1 October 1984 with the line`s extension from Rohrdamm to Rathaus Spandau. Its name means `Citadel` in English and it was named for the historic Spandau Citadel. Unlike most u-bahn stations, Zitadelle has side platforms. The station`s interiors were also d... Found on http://en.wikipedia.org/wiki/Zitadelle_(Berlin_U-Bahn)