WorldFrame is the frame that displays the 3D world. You can have only one instance of WorldFrame. There is not much you can do to a WorldFrame, so it is best to leave the WorldFrame object in WoW alone. WorldFrame is the frame which is used to display 3D world itself; it inherits methods of a normal frame widget. The frame is initially nonprotected, but because nameplates are protected children of the world frame, becomes protected when the first nameplate is seen. No additional WorldFrames may be created by addons.