The Soda Museum. They even take a stab at the original Coke and Pepsi recipes.

I, Caleb D. Bradham, do solumnly swear that the foregoing is a true, complete and correct formula for making or manufacturing "Pepsi Cola" as heretofore made and manufactured and sold by the Pepsi Cola Co., and is the formula for said Pepsi Cola as originated by me and same is now in the property of said Pepsi Cola Co., Bankrupt.