In ancient Roman cities, what innovative retail layout feature was incorporated into the macellum (food market) to enhance the shopping experience?

The ancient world had sophisticated retail systems long before modern shopping malls. From the grand bazaars of Mesopotamia to Roman shopping districts, retail spaces were carefully designed to maximize sales and customer experience. This poll tests your knowledge of ancient retail layouts and how they influenced consumer behavior in civilizations that thrived thousands of years ago. Are you as knowledgeable about ancient shopping as you are about modern retail?

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A central courtyard surrounded by specialized food stalls arranged by product type
A spiraling pathway that guided shoppers from least expensive to most expensive goods
Automated water-powered doors that opened when customers approached
Elevated shopping platforms where only patrician customers could access premium products