Did You Know? Grand Central Special with Frank Ape
July 9, 2017
By the 1980s, the ceiling was obscured by decades of what was thought to be coal and diesel smoke. Spectroscopic examination revealed that it was mostly tar and nicotine from tobacco smoke. A 12-year restoration effort, completed in autumn 1996, restored the ceiling to its original design. A single dark patch above the Michael Jordan Steakhouse was left untouched by renovators to remind visitors of the grime that once covered the ceiling.