New York City’s Grand Central Terminal is one of the world’s great railway stations. Click here to read the Wikipedia entry about its rich history.  In that entry, they speak to:

“A “secret” sub-basement known as M42 lies under the Terminal, containing the AC to DC converters used to supply DC traction current to the Terminal. The exact location of M42 is a closely guarded secret and does not appear on maps.”

If you click here, you can watch a brief 4 minute video which shares the fascinating story behind the secret basement and tours the historic artifacts which are still there. 

Posting by Russ Milland

Click on each image for a closer look!

Grand Central Station on 42nd Street

Main Concourse, 2013

The Oyster Bar, Grand Central’s Oldest Business