Gringotts is the only bank for wizards and witches in the Harry Potter series, created by J.K. Rowling. Located in Diagon Alley, it is known for its white marble architecture and goblin employees who manage the bank's operations. Gringotts offers various services, including vaults for storing money and valuable items, as well as currency exchange for wizarding money like Galleons, Sickles, and Knuts. The bank is famous for its high security, featuring magical protections and dragon-guarded vaults. Customers can access their vaults using a cart that travels through underground tunnels. Gringotts plays a crucial role in the wizarding economy and is a key location in the Harry Potter storyline.