Roaming among the train stations in Berlin is always fun. From my visit to Berlin in July ...
S+U-Neukölln:
S-Anhalter:
U-Spichernstraße:
Berlin Hauptbahnhof:
U-Naturkundemuseum:
U-Schillingstraße:
U-Kurfürstenstraße:
U-Mendelssohn-Bartholdy-Park: