U9 is a line on the Berlin U-Bahn. The line was opened on 28 August 1961 as Line G.
Hansaplatz, one of the stations of the U9
The Berlin U-Bahn is a rapid transit system in Berlin, the capital and largest city of Germany, and a major part of the city's public transport system. Together with the S-Bahn, a network of suburban train lines, and a tram network that operates mostly in the eastern parts of the city, it serves as the main means of transport in the capital.
U1 crossing Oberbaum Bridge
Train entering Nollendorfplatz, one of the original stations of the Berlin U-Bahn
The latest model of Berlin's U-Bahn called 'Icke', introduced in 2015
Hermannplatz on the U7