Staircase in the prototypical urban residential apartment building the Immeuble Clarté in 1932, a now UNESCO World Heritage site in Geneva, Switzerland commissioned by Edmond Wanner and designed by Le Corbusier and his cousin Pierre Jeanneret with glass block steps and metal wire mesh railing.

A Dated Flat in a Building by None Other Than Le Corbusier Gets a Reverent Refresh

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Composed of two wings, the Clarté embodies the designers’ penchant for industrial materials. Each wing has its own entrance, lobby, and stairwells supported by a steel frame that incorporate glass-brick steps from French glass manufacturer Saint-Gobain.