Did a search, found nothing.
In silvermoon there is a fountain that has a invisable wall around it so you cant enter it, till now.
Outside the AH in Silvermoon, the west AH, the fountain is south of it.
Cant give cords since realms are down but i took 3 pictures.
forgot to add in the picture, when you get to the edge of the Fountain like in the above picture, BLINK.