The granite paving on the outside extends into the lobby itself. Michael Heizer's sculpture Levitated Mass (1982), an engraved flat stone laying inside an angled pool of stainless steel, stands in front of the entrance.
The entrance to the lobby is through the north-east corner that has been sliced off diagonally as a cantilevered structure, with the corner of the building looming overhead.
This wedge-shaped building is clad in polished black stone that emphasizes its sheer mass.
With a piece of the skyscraper cut away, the corner of the tower is left dramatically cantilevered over the street,
There is a glass-enclosed plaza along 56th Street which contains a cafe and a winter garden landscaped with delicate bamboo and other plants.
A public exhibition space is located on 57th Street as a sympathetic (if corporate) gesture to the private, upscale galleries located in close proximity to the tower.
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