Which company holds the Guinness World Record for the 'Most Valuable Billboard Advertisement' ever created?

The world of retail is full of ambitious marketing campaigns, but some advertisements have literally made it into the record books! This trivia question focuses on an extraordinary advertising achievement that secured its place in the Guinness World Records. Test your knowledge of extreme retail strategies and see if you can identify which famous campaign broke boundaries and set a world record.

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Coca-Cola (Times Square billboard featuring real gold and diamonds worth $2.5 million)
Calvin Klein (Milan Fashion Week billboard with 10,000 real roses replaced daily for a month)
Dior (Champs-Élysées billboard utilizing 450,000 fresh flowers worth €3.2 million)
Ginza Tanaka (Tokyo billboard displaying a solid gold Godzilla statue worth $6.4 million)