The wizard bank. The Diagon Alley branch is a snowy-white building that towers over the other shops. It has burnished bronze doors, and is staffed entirely by Goblins. Gringotts differs from other banks in that instead of investing the money deposited by its customers, it simply places it in locked vaults located in a series of catacombs below the building. Therefore, when you return to collect your money, you get exactly the same coins back that you left there, and you don't get any interest. On the plus side, Gringotts is deemed impossible to steal from.