A mysterious crew of carpenters secretly worked inside New York City’s towering Citicorp Center each summer evening in 1978, slipping in after business hours to carry out an unknown project within the iconic 59-story skyscraper. Their late-night presence raised questions about what they were building—or concealing—inside the building’s walls, adding an air of intrigue to midtown Manhattan. The unusual activity went unnoticed by office workers, leaving only speculation about the purpose behind their clandestine labor. The story offers a glimpse into an unsolved urban mystery from the late 20th century.
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 ...
