Which retail store layout holds the Guinness World Record for the largest single-floor retail space?

Test your knowledge about extraordinary world records in the retail industry! While many of us shop regularly, few know about the incredible feats and innovations that have made it into the record books. From massive store layouts to revolutionary customer service approaches, these record-setting retail achievements have pushed boundaries and redefined what's possible in commerce.

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IKEA Gwangmyeong in South Korea (59,000 square meters)
Shinsegae Centum City Department Store in South Korea (293,905 square meters)
The Dubai Mall in UAE (214,000 square meters)
West Edmonton Mall in Canada (350,000 square meters total, but multiple floors)