Information booth

The central information booth, seen here from a bird's eye view photographed high above the main concourse, contains two of the terminal's secrets. One is that it has a spiral staircase hidden inside it that allows employees to discreetly descend to a lower-level information booth. To discover the second secret, read on.

Click here to read the related behind-the-scenes story on the secrets of Grand Central Terminal. And click here to check out the entire Road Trip 2010 package.