A secret construction crew worked late into the evenings at New York’s iconic Citicorp Center during the summer of 1978, slipping into the tower after office workers had left. Their presence hinted at an unusual project unfolding within the 59-story skyscraper, raising questions about what modifications were being made—and why they were kept hidden from public view. The clandestine nature of their operations suggests a deliberate effort to avoid scrutiny, leaving speculation about the building’s evolving purpose or structural changes. Details about the work remain scarce, adding to the intrigue surrounding one of Manhattan’s most recognizable landmarks.
EVERY EVENING IN the summer of 1978, after the office workers left Citicorp Center, the carpenters arrived. They entered the 59-story tower on Lexington Avenue at 53rd Street in midtown Manhattan and ...