Under a moonlit teal sky, Avenida Juárez blazes with cascading strings of golden and red holiday lights stretching toward the illuminated Torre Latinoamericana — one of Latin America's first skyscrapers — in a scene that perfectly captures Mexico City's glamorous mid-century Christmas spirit. A sleek late-1960s automobile glides through the wet street below, while neon signs and star-shaped decorations flicker along the busy commercial corridor. Photographer Mark Turok composed this vistacolor chrome image with a painter's eye, balancing the Art Deco tower's warm glow against the cool moonlight above. On the back, a traveler named Dot wrote to her friend Flo in Milton, Massachusetts, bubbling with enthusiasm: "It's just beautiful here. So modern & yet such an old civilization. Went to the pyramids yesterday & today the Museum of Anthropology, which is only 4 yrs old & fantastic!" — a snapshot of wonder from a first-time visitor navigating a city then at the height of its post-Olympic confidence. The card was sent via airmail in 1970, franked with a Mexican 80 centavos Correo Aéreo stamp.