GEORGE: My name is George Monasterio. I am the director of Grand Central Terminal for the Maintenance of Way, which is the maintenance group of Grand Central Terminal. Here the palette and the tone is subdued, and there's a sense of elegance. Coming into the terminal, there is a sense of calm, which is intentional. The light levels are not as bright, although retailers would like it to be brighter to sell the merchandise, but the stores are brighter. But the actual main areas, public areas are a little dimmer. Our light bulbs are 3000 Kelvin colorwise, which is more, calming. And it's supposed to have you feel when you come in relaxed and calm, and not overwhelmed. It's a little break from the everyday hustle and bustle from the outside noises and outside lights. DANNY: It's a dim place, but it doesn't have that many shadows, you know? It almost forces you to be present. RHIANNON: But it’s not always calm here in the grand concourse –this space has served some of the most exciting movie scenes ever shot– like the famous chase scene with Al Pacino in the 1993 crime drama, Carlito’s Way. GEORGE: …the end of the movie they come through the terminal, um, and he's going to board his train, but he's being chased. He goes up the PanAm escalators at the time, which is now the MetLife building. He hides from his pursuers, hiding in the escalator, until he gets to his train. There are many movies that are shot here in the terminal. But don't worry, you will not be here during a movie shoot. Most of the movie shoots are done at night when the building closes. RHIANNON: The Grand Central information booth is smack in the center of the concourse. This has been a meeting spot for over a century. Inside that octagonal brass booth is a skinny spiral staircase which goes down to the lower level. Now look up and take in the 3 tall arched windows on either side of the building. You might see workers walking along the catwalks there, on multiple levels. Before modern ventilation systems, these windows would open to let air in. All along the very top of the long sides of the building, cutting into the celestial ceiling, are smaller arched windows. GEORGE: We call those windows the eyebrow windows. And above the eyebrow windows, there are sculptures which depict commerce and shipping, from the Commodore Vanderbilt days. If you look closely, you'll see different architectural symbols for commerce. So you will see the wheel of a ship. There are symbols of birds and acorns and oak leaves that go back to the Commodore days of, “from a small acorn grows the mighty Oak” motto. The acorns and oak leaves are sprinkled throughout the terminal, and within its architecture and the friezes of the lights and above the windows there's the railings of certain areas that you have to kind of look and find. And then once you see and realize that that's the acorn, more acorns will become apparent. RHIANNON: This is yet another way that The Commodore left his mark – we’ll learn more about him soon.