10 fascinating secrets of NYC’s Grand Central Terminal (2024)

Originally published in January 2017.

More than 750,000 people visit Grand Central a daily; some to shop, some to dine, but most to hit the rails. Beyond being a pulsating artery of New York City, the transit hub is also a spectacular work of architecture with an undeniable beauty and an incredible history.

RECOMMENDED: Full guide to Grand Central Terminal in NYC

Opened in 1913, the station was designed by architecture firms Reed & Stem and Warren & Wetmore in a Beauxs-Art style and has become one of the city’s most celebrated landmarks. However, while it’s difficult not to be entranced by the station’s grandeur today, this hasn’t always been the case. Like most of New York City landmarks, Grand Central has fallen in and out of favor over the last century, and as one might expect, it harbors some fascinating tales. From a massive screw-up in the celestial ceiling to a thwarted Nazi plan to blow the station to smithereens to the terminal’s surprising Donald Trump connection, ahead are the top 10 secrets of Grand Central Terminal.

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Image: Courtesy New York Public Library

1.Grand Central has been rebuilt three times

The Grand Central you see now is not the original building. Indeed, the terminal as it exists today is actually the third iteration of the structure. The original station was known as the “Grand Central Depot” and erected in 1871. The depot served the region’s three major lines, but the city’s rapidly growing population ultimately led to its demolition in 1900. Soon after, a six-story structure replaced the depot and it was renamed “Grand Central Station.” However, the design of Grand Central Station was flawed as the interior was not equipped to deal with exhaust from steam-powered trains. Conductors were often blinded by the smoke in front of them, and unable to see the tracks, several deadly accidents occurred. After 15 passengers died in one collision, the station was torn down in 1905 and rebuilt as Grand Central Terminal.

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Photograph: Courtesy CC/Flickr/Monica Arellano-Ongpin

2.The celestial ceiling is inverted

By far the biggest “oops” of the station, the stunning painting of constellations that covers the Main Concourse cathedral ceiling was painted backwards. Amazingly, the flub wasn’t realized until well after the station was opened, and when it was pointed out to the Vanderbilt family (the builders of the station) they claimed that the positioning was intentional and the zodiac was intended to be viewed from a heavenly perspective, rather than an earthly one. But as 6sqft recalls, while a divine view was not uncommon in medieval art, “There is also confusion about its accuracy [in Grand Central], as Taurus and Gemini are reversed in their relationship to Orion, meaning they were painted from a heavenly view and Orion was painted from the earthly view.”

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Image: Courtesy The Science Channel

3.Nazis once tried to blow it up

When the station was constructed in 1913, planners wanted to add a top-secret power substation beneath the terminal. Known as “M42,” the equipment placed beneath ground had the capacity to transfer 11,000 volts of alternating current above to power trains. The covert move proved to be extremely advantageous when the U.S. entered WWII and needed a way to quickly move troops and artillery without impediment. However, all was nearly destroyed when a German spy who worked in the basement of Grand Central informed Adolf Hitler of the power station. As 6sqft writes, “Hitler sent Nazis over on U-Boats in the middle of the night, armed with an interesting weapon–sand. Throwing sand into the rotating blades would have wiped the converters out, along with 80 percent of troop and supply movement.” Luckily, the Coast Guard spotted the spies and the FBI nabbed them before they entered Grand Central.

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Photograph: Courtesy 6sqft

4.There’s a secret train track hidden within the station’s depths

Among the more incredible secrets of Grand Central Terminal is the secret track hidden in its depths. It was first built to move freight but then converted into a private railroad used for ushering guests, rich and famous enough, in and out of the famed Waldorf Astoria Hotel, sight unseen. But the most famous patron of this rail for the clandestine was President Franklin D. Roosevelt who had become paraplegic (having contracted polio at age 39) and didn’t want the country to know. You can read more about the fascinating history of this rail here.

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Photograph: Courtesy Grand Central Terminal

5.There used to be a movie theatre in Grand Central

Just as businesses in the city come and go, a popular spot to watch a short flick could once be found next to Track 17. The theatreopened in 1937 with 242 seats and showed short films, newsreels, documentaries and cartoons, their lengths chosen specifically for commuters. The theatre thrived for decades but was ultimately shuttered and gutted in 1967. While retails shops replaced what was there, thankfully old photos of the impressive setup still exist.

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Image: Courtesy 6sqft

6.A dirty ceiling patch shows how much New Yorkers’ loved cigarettes

Most of us are too young to remember a time when smoking inside public spaces was totally acceptable. A vestige of this nicotined past is a small dark patch in the Main Concourse ceiling next to Cancer, the crab. In 1998, the city cleaned the ceiling as part of Grand Central’s restoration project. While most would assume that the thick layers of brown and gray were accumulated train soot and exhaust, it was found that the filth was actually 70 percent nicotine and tar.

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Photograph: Courtesy Vanderbilt Tennis Club

7.Donald Trump once owned the tennis courts inside the station

After you get past the fact that there is not one but two tennis courts hidden in Grand Central Terminal, you should then revel in the fact that they are completely open to the public. Known as the Vanderbilt Tennis Club, the space is housed in the Annex of the station and includes one regulation-sized indoor hardcourt, one junior court, two practice lanes and a fully equipped fitness room. The courts were originally built by Geza A. Gazdag in the 1960s, and Donald Trump took over in the 1980s. Among the stars to have hit a fee balls here: John McEnroe and the Williams sisters. Trump himself has called the tennis courts “one of the greatest secrets.”

8.Grand Central was almost demolished (again) to build a skyscraper

It’s hard to believe that any modern mortal would consider demolishing something so architecturally splendid, but that was indeed the case in the early 1950s. Developers planned to knock down the terminal and replace it with what would have been the world’s tallest skyscraper. Architect I.M Pei was tasked with the design and he dreamt up an 80-story, hourglass-shaped, futuristic tower known as the Hyperboloid. Thankfully, the plans were abandoned as the costs were too high.

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Photograph: Courtesy CC/Flickr/Nick Normal

9. There’s a “whispering gallery” in the basement

Just outside the Grand Central Oyster Bar on the lower concourse are four arches joined by a curved ceiling that together create a whispering gallery. How it works: if one person stands at one corner and another at the opposite end and speaks at a normal volume, the other person will be able to hear everything said perfectly. And this is despite the fact that there are about 50 feet separating them.It’s not clear if the resulting acoustical effect was intentional in design or if it was happenstance.

10. There’s a jewel worth $10+ million hidden in plain sight

Atop the information booth at the center of the terminal is a clock that features four faces made out of one solid piece of precious opal. In total, Sotheby's and Christie's the whole thing is estimated to be worth $10-20 million. Bonus secret: Inside that same info booth is a secret steel staircase shrouded by the cylindrical brass container that leads to the lower level information booth.

10 fascinating secrets of NYC’s Grand Central Terminal (2024)
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