I had thought that this speakeasy-type joint was still closed "for renovation", but nope. It is open again as The Campbell. As before, there is almost no signage, and a girl checks your attire before letting you in. You just have to know where it is. Cozy place. We have used it as a destination for a couple of our Maggie's Urban Hikes.
Located in Grand Central Terminal (aka Grand Central Station), this office of John Cambell in the 1920s had been abandoned for decades and used for storage. Here's what it looked like in Campbell's time: