I don't want to leave Berlin. There's so much I haven't seen yet.
I've seen central East Berlin, but not central West Berlin. I've seen Potsdamer Platz, but not Alexanderplatz. I've seen Unter den Linden, but not Kurfürstendamm.
I'm unclear as to how everything connects above ground. I've seen the U2 and the U6 a lot, though.
It's cold and wet and above all, icy. I don't know how all the inhabitants have survived the cobblestones with their layer of ice.
I still want to walk more.