Wikimedia Commons has media related to Berlin U-Bahn stations.
Classification: Passenger rail transport: Rapid transit: Rapid transit in Europe: U-Bahn in Germany: Berlin U-Bahn: Berlin U-Bahn stations
also: Civil engineering: Transport infrastructure: Rail infrastructure: Railway stations: Rapid transit stations: Berlin U-Bahn stations
also: Cities: Capitals: Capitals in Europe: Berlin: Buildings and structures in Berlin: Berlin U-Bahn stations