Which company holds the Guinness World Record for the 'Largest Advertising Billboard' ever created?

The world of advertising is full of record-breaking campaigns that pushed boundaries and made history. Some campaigns have set Guinness World Records for their creativity, scale, or impact. Test your knowledge about these remarkable advertising achievements that broke world records and set new standards in the marketing world.

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Coca-Cola (with a 50,000 square meter billboard in Madrid)
Apple (with a 35,000 square meter iPhone advertisement in Dubai)
Coca-Cola Arabia (with a 26,000 square meter billboard in King Khaled International Airport, Saudi Arabia)
Samsung (with a 45,000 square meter Galaxy advertisement in Times Square, New York)