Under a blazing Mexico City sun, the grand paseo de cuadrillas unfolds in Plaza México — the world's largest bullring — as matadors, picadors on horseback, and banderilleros parade in their embroidered "suits of lights" before a crowd that packs every one of the arena's 41,000 seats in a roar of color and anticipation; this Vistacolor chrome captures the pageantry of the opening ceremony with striking aerial clarity, the sandy ruedo glowing gold against the tiered mass of humanity above, ringed by period advertising hoardings for Zenith, Campari, Benedictine, and White Label Scotch that now read as a vivid time-capsule of mid-century Mexico City commerce. Photographed by Mark, whose lens caught the precise moment of collective breath before the gates open and the corrida begins.