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 Berlin Customs Wall The Berlin Customs Wall (German: "Berliner Zoll- und Akzisemauer" literally "Berlin customs and excise wall" ) was a ring wall around the historic city of Berlin, between 1737 and 1860; the wall itself had no defence function but was used to facilitate the levying of taxes on the import and export of goods (tariffs) which was the primary income of many cities at the time. The wall was erected after the old Berlin Fortress was demolished in 1734; the walls of the latter had already started to crumble and its military function was questionable. Frederick William I