This is absolutely ridiculous. Do you expect Subway's headquarters to be shaped like a cold-cut sandwich?
In all seriousness, The Coca-Cola Company produces and distributes only their syrup concentrate to franchisees, whom bottle it for sale. Yes they have a subsidiary which oversees North American production and distribution of beverages, however that is the only one they own and operate.
And, with that in mind, their headquarters should resemble a large bag of goo instead of their trademark bottles.