Berlin Wall and to pass it on to the coming generations as a reminder to stand up for freedom and democracy to ensure that such injustice may never happen again," entreated Mayor Wowereit. "It has been shown once again: Freedom is invincible at the end. No wall can permanently withstand the desire for freedom", proclaimed President Wulff." Notes Bibliography Further reading Berlin Wall The Berlin Wall (, ) was a guarded concrete barrier that physically and ideologically divided Berlin from 1961 to 1989. Constructed by the German Democratic Republic (GDR, East Germany), starting on 13 August 1961, the Wall cut off (by
Berlin Customs Wall reminder of its heritage. The following streets follow the original route of the customs wall: Stresemannstraße (former "Königgrätzer Straße"), Marchlewskistraße, Friedenstraße, Prenzlauer Berg avenue, part of Prenzlauer Allee, Torstraße, Hannoversche Straße, Charitéstraße, part of Reinhardtstraße, and Ebertstraße. The 18 city gates and 2 river gates are still visible on the map, their names having been given to squares and streets. In clockwise order these are: 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