For years I have driven by, but I actually stopped and looked this time. Henry Sprott Long is primarily known for grand historically-referenced designs. But the office is pure MCM. Love the atrium.
And a bit of a find at 5th Avenue Antiques (at the top of the stairs) -- three shallow aggregate planters. $225, I think, for the three. I almost bought them, but then realized I didn't know what to put in them. Now I realize they'd be great with succulents.