Kodak Colorama

The Colorama was a large photographic display located on the east balcony inside New York City's Grand Central Terminal from 1950 to 1990, with 565 being made. Used as advertisements by the Eastman Kodak Company, the photographs were backlit (with a mile of tubing) transparencies 18 ft tall by 60 ft wide. The photographs were described as "The World's Largest Photographs".