The Gothamist recently got access into the machine room behind the massive Tiffany Clock adorning the 42nd Street facade of Grand Central Terminal since 1914.
The clock is not easy to get to—even the access point is in an off limits area, and once you get through that door, you’ll need to climb up a series of old, thin, metal ladders. These lead to a wooden room that most closely resembles an attic. It almost seems as though it’s gone untouched since the clock was installed in 1914, with gears, layers of dust and old oil cans the only other presence.
Check out the full writeup for more on the history of the clock.