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The Ironforge Bank is located near the main entrance on the other side of a bridge which leads to the Auction House in The Commons. The guild bank in Ironforge can be found to either the left or the right, opposite of the bankers.
The Stormwind Bank is located in a large almost Roman building on the inner left side of the Trade District. The guild bank is also located in the building, on either side of the middle banker, or on either side of the entrance.
The bank for the Shrine of Seven Stars is located in The Celestial Vault, which is located at the top level of the shrine, on the left of the shrine as you enter it.
The bank is on the south-eastern side of the Lower Rise. (Go all the way down the ramp to the bottom of the flight tower, and go straight out the door.) The bank is tucked back behind some other tents. The mailbox is to the right of the door. The guild bank is a large totem in front of the bank entrance.
The first building straight in front of you as you walk into Orgrimmar, in front of the flight tower. The easily accessible roof is a common place to meet for trades or enchants. The main mailbox is to the right of the bank's door. The guild bank is a large dome shaped vault door on the floor behind the left and right bankers.
The tower in the center core of Undercity, surrounded by a ring of green goo. Go down either of the ramps from the top balcony. The guild vaults are chained skulls on the four corners of the bank level, flanking the four banker's windows.
The bank in the Shine of Two Moons is located at the top of the shrine on the left hand side as you enter the building, in an area called The Jade Vaults.
The bank in Ratchet is two goblins in open windows as in Booty Bay, next to the blacksmith's shop, facing the dock to the Maiden's Fancy, the boat to Booty Bay.
A dome-like building to the left of the exit opposite the one nearest the flight master.
Far south on the docks, on the side of the horseshoe farthest from where the Maiden's Fancy lands, two open windows as in Ratchet. One of the two mailboxes is nearby as well, as well as guild banks near the bank and the auctioneer.
A goblin standing next to a treasure chest in the back-right of the large building with the telescope on top. There is a guild vault in the back-left corner of the same building.
The bank is a set of stairs leading down into the ground, to the left as you come in the entrance nearest the flight path then across the bridge. Guild banks are the two odd-looking devices on either side of the room, each about as large as a goblin.
Shattrath City is divided into two factions: Aldor and Scryer. Both banks are located on the top level of the Terrace of Light, with stairs inside providing access to the Lower City. These banks are next to their corresponding faction's base, and are opposite each other. The guild vaults are set into the back of the alcoves on either side of the room where the arcane guardians used to stand for both factions.
Aldor bank is located in the northwest quadrant of the Terrace of Light.
Scryer bank is located in the southeast quadrant of the Terrace of Light.