Which innovative retail design concept, pioneered by architect Victor Gruen in the 1950s, fundamentally changed how architects approach commercial spaces and is often cited as the beginning of modern retail architecture?

The retail spaces in architectural design have evolved dramatically over the decades, influencing not just how we shop but how we interact with brands and products. From the grand department stores of the early 20th century to today's experiential flagship stores, architects have played a crucial role in shaping retail environments. This poll tests your knowledge about a significant retail design innovation that changed how architects approach commercial spaces.

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The enclosed shopping mall with climate control and inward-facing storefronts
The open-air promenade with integrated landscape design
The vertical department store with escalator-centric circulation
The storefront arcade system with standardized modular displays