These structures are not built for people; as a result, there's something inhuman about them. They're built for a specific function—to separate and transform raw materials. That function manifests itself in strangely elegant utilitarian designs, an architecture of repetitive geometric forms. Cylinders, cubes, rectangles—all connected by an intricate knotwork of ducts and pipes and conduits and catwalks.

They're not built for beauty. But just look at them.