GRINGOTTS WIZARDING BANK

Gringotts Wizarding Bank is the only known bank of the wizarding world and it is operated primarily by goblins. A snowy white building, near the intersection of Knockturn Alley and Diagon Alley, Gringotts towers over all neighbouring shops. Customers pass through a set of bronze doors and then silver ones before entering the lobby. The main floor is paved with marble and has long counters stretching along its length. Within, wizards and witches keep their money and other valuables in vaults that are protected by very complex and very strong security measures. The vaults extend for miles under London and are accessible through rough stone passageways and then by means of magic carts that travel speedily along their tracks. Gringotts also offers Muggle-Wizarding currency exchange.
There are a number of methods to opening the vaults. Most vaults, use small golden keys. Higher security vaults may have various enchantments or other measures upon the doors. For example, the door to Vault 713 needs to be stroked by a certified Gringotts goblin, which causes the locks to retract to the centre of the door. If anyone other than a certified Gringotts goblin touches the door, that person will be sucked into the vault, which is only checked for trapped thieves about once every 10 years. Dragons guard the especially high security vaults found in the lowest reaches of the bank.