Christopher Payne spent years convincing factory managers to let him behind the curtain. The result is 70 large-scale photographs capturing the scale, complexity, and surprising beauty of American manufacturing: football leather being cut, cymbals being hammered, Peeps on the Just Born conveyor, Steinway pianos drying in formation, and a 13-foot Goodyear tire dwarfing the worker beside it. Audio commentary via the free Bloomberg app lets Payne explain how he got the shot—and what you're actually seeing.