
The Keenan Building in bright early-morning sunshine, seen from Sixth Avenue.

Three Gateway Center (1952, architects Eggers & Higgins), seen down the western end of Forbes Avenue from the Diamond. The distinctive stainless-steel facing of the first three Gateway Center towers was an afterthought, and a very lucky one. They were to be faced with brick, which would have made them humdrum undistinguished vertical warehouses like a thousand other modernist cruciform brick towers around the world. But bricks were in short supply after the Second World War, and for once budget constraints led to a much more pleasing result.

The Diamond Building is by MacClure and Spahr, who skillfully met the challenge of a dauntingly irregular site by filling it with a building that looks as if it’s meant to be this shape. It was originally the headquarters of the Diamond Bank, whose logo can still be seen in metal grates at ground level.


Many of the interior details are preserved inside the Diamond Building. Here we look down the stairwell with its ornate railings.