Agern is the fancy restaurant that Claus Meyer is opening as part of his food complex in Grand Central Terminal. It is the first part of the complex (which will also encompass a food court and a hot dog stand) to open. It is located in the former Men's Smoking Lounge, off the Waiting Room that is now known as Vanderbilt Hall. Eventually, the main entrance will be off Vanderbilt Hall; now that the hall is under construction (for the food court), you have to go in the back entrance, off the short corridor leading to the perpendicular long corrider to the Times Square shuttle (beneath the term