The Berlin U-Bahn originated in 1880 with Werner Siemens' idea to build an urban railway in Berlin. During the nine years after the German Empire was founded, the city's population grew by over one-th
Train outside Schlesisches Tor c. 1902
Train at Spittelmarkt in 1908
East entrance of the Uhlandstraße station
Gleisdreieck lower platform, where the U2 stops
U1 is a line on the Berlin U-Bahn, which is 8.8 kilometres long and has 13 stations. Its traditional line designation was BII. It runs east–west and its eastern terminus is Warschauer Straße S-Bahn st
A U1 train crossing the Oberbaumbrücke
U1 train leaving Warschauer Straße station, heading for Schlesisches Tor
The Bülowstraße elevated station in 1903
U-Bahnhof Uhlandstraße (U1)