The Craftsmen's Terrace is where most of the Darnassus profession trainers and merchandise can be found. It also houses a contingent of the Argent Dawn, and holds the location of the Darnassus inn.
To get to the Craftsmen's Terrace, you can head north from the Warrior's Terrace, or east from the Cenarion Enclave. There is no direct route from the Darnassus bank save for swimming.