U2 (Berlin U-Bahn)
U2 is a line on the Berlin U-Bahn. The U2 line starts at the Pankow urban rail (S-Bahn) station, runs through the eastern city centre (Alexanderplatz) to Potsdamer Platz, the western city centre (Wittenbergplatz, Zoologischer Garten) and finally to the Ruhleben terminal station.
The U2 has 29 stations and a length of 20.7 kilometers (12.9 mi). Together with the U1, U3, and U4 lines, it was part of the early Berlin metro network built before 1914. The route between Potsdamer Platz and Zoologischer Garten was the western section of the Stammstrecke, Berlin's first metro inaugurated in 1902.
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