Tierpark (Berlin U-Bahn) by 1 July 1989, just a few months before the fall of the Berlin Wall. When the Berlin Wall fell, the line was subsequently renumbered to U5 in 1 July 1990. Tierpark (Berlin U-Bahn) Tierpark is a Berlin U-Bahn station located on the . It is named after the Tierpark Berlin, one of the two zoological gardens in Berlin. Prior to the opening of the station, the line was intended to go to Karlshorst in the early 1950s/60s plans. Construction of the station began on 19 September 1969. This station was opened in 1973. It was the one and only
Berlin Customs Wall thus turning Berlin into a central transport hub for Prussia and the German Customs Union. With the rise of Berlin, new suburbs were built outside the Customs Wall, which increasingly became a hindrance to the continued development of the city. In 1860 the Customs Wall was removed and on 1 January 1861 Berlin amalgamated its suburbs resulting in a doubling of the city's population. The remaining walls were demolished for the most part between 1867 and 1870 - including most of the gates. Only some imposing gates were kept, the Brandenburg Gate being the only one to be rebuilt after