Let's clean The Statue of Liberty! It used to be bronze, a pale rose gold. But now its a weird green. Since Lady Liberty is made out of copper, we can clean it using the traditional method of Coke.

Assuming that it takes about 1 glass of coke to clean one penny: One penny weighs 2.5 grams. The Statue of Liberty weighs 450,000 pounds. So you would need 204,116,567 glasses of Coke to clean Lady Liberty. For reference, about 29 billion cases of Coke are sold in the US every year.