The British auction house's new U.S. headquarters on West 57th Street populates the lower floors of the Warren & Wetmore–designed neoclassical tower.

Add Yahoo as a preferred source to see more of our stories on Google. The top residential sale in Manhattan last week is in the world's skinniest skyscraper, The Steinway Tower on Billionaires Row.

The creation of a homelike appearance for a 15-story office and showroom building was one of the architectural problems confronting Warren & Wetmore in designing the Steinway Building at 109–113 West ...