40.4000° N, 3.6833° W: Madrid, Spain Zig, zag, zoom my father’s feet move quite rápido. Through narrow, dark alleyways, corridors of quaint boutiques and storefronts were closing up one evening, we strolled through the Centro neighborhood of Madrid. His inner GPS beacon, hit the ultimate Madrid jackpot. He stumbled across a hidden gem of pure chocolate delight; its illuminated sign said San Gines Chocolateria....