Which architectural innovation was first introduced by Apple in their retail stores and has since become a signature feature copied by many other retailers?

The fusion of architectural design and retail spaces has led to innovative developments that transform how customers experience brands. Iconic architectural elements have become signature features for many retail establishments, creating memorable customer experiences and reinforcing brand identity. This poll tests your knowledge of groundbreaking architectural innovations in retail environments.

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The floating glass staircase with glass treads and structural glass supports
The open ceiling concept with exposed mechanical systems painted white
The 'living wall' of plants integrated into the retail environment
The circular skylight system that tracks natural light throughout the day