Coca-Cola
Though it was never their original intention, one 2013 campaign made an interesting discovery in the Coca-Cola logo. Turns out, the flag of Denmark can be seen between the "O" and the "L" in "Cola." The reason Coca-Cola is a red logo dates back to over 130 years ago. The barrels the drink came in were painted red so that tax officials wouldn't mistake it for brown alcohol.
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