Welcome to one of Berlin’s most unmistakable and bizarre landmarks. As you stand here in the Steglitz district, specifically in the Bismarckviertel area, look up at the towering structure rising forty-seven meters above the busy Schloßstraße shopping district. It is officially known as the Steglitz Tower Restaurant, but to locals, it has only ever been called the Bierpinsel, or the Beer Brush. This bold piece of futuristic architecture looks like it was plucked straight from a nineteen-seventies science fiction movie. It sits perched directly above the Joachim-Tiburtius-Brücke, a bridge following the path of a highway, making it look almost like an alien control tower overseeing the city’s traffic. Take a moment to orient yourself: you are at the heart of one of Berlin's most historic retail hubs, where mid-century modernism meets the experimental energy of West Berlin's cold war era.