What are Gringotts?

Gringotts is the Wizards Bank, located under London, under the Underground train system, is run by goblins, and stores numerous vaults of wealth and treasures. Harry's inheritance is safely stored at Gringotts, as is the Sorcerer's Stone before Hagrid takes it to Hogwarts. Gringotts is in the news because of several break-in attempts...to steal the hidden Stone.