Stair Power

A dramatic stair line with 3,000 Swarovski crystals and topped with a heliostat to gather light and bring it deep into the interior of the five-story space is the central feature of the new Diane von Furstenberg headquarters in New York.

Color-changing LEDs give the building a dynamic presence at night.

A heliostat at the top of the stair gathers sunlight ...

... which reflects off the 3,000 crystals that line the stair ...

... and are illuminated by LEDs at night.

A section shows how thte stair cuts through the building.

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