It's hard to miss taqueria Piaxtla es Mexico once you turn onto 51st Street off of 5th Avenue in Sunset Park. There's the vertical sign attached to the facade, glowing "Ricos Tacos" in fluorescent pink; there's a painted mural with a fat pig in a steel cauldron, proclaiming "Ricas Carnitas" across the wall. There's also a man marching the block, advertising both sentiments into a bullhorn. More