einhard von Gerkan and Volkwin Marg are not names well-known in Britain, but their signatures are prominent in Germany’s capital. As GMP Architects, they designed its infrastructure. Berlin’s Hauptbahnhof is a vast, multi-level railway interchange with an aesthetic inspired by an immoderate attachment to concrete, a love of garish mid-market shopping, and too much time spent watching Fritz Lang’s , an Expressionist film of 1927 that is either visionary or dystopian depending on your reaction to space, fear and
