[Berlin U-Bahn] Grenzallee is a Berlin U-Bahn station located on the U7. Opened in 1930 and built by A.Grenander. It was the end of the north-south line until 1963. The next station is Blaschkoallee. == Source == ... Found on http://en.wikipedia.org/wiki/Grenzallee_(Berlin_U-Bahn)
1) Berlin U-Bahn station 
[Berlin U-Bahn] Grenzallee is a Berlin U-Bahn station located on the U7. Opened in 1930 and built by A.Grenander. It was the end of the north-south line until 1963. The next station is Blaschkoallee. == Source == ...