 The Nine-Dragon Wall is a spirit wall with images of nine different dragons, and is found in imperial Chinese palaces and gardens.Because nine was considered the number of the emperor, only the most senior officials were allowed to wear nine dragons on their robes — and then only with the robe completely covered with surcoats.Lower-ranking officials had eight or five dragons on their robes, again covered with surcoats; even the emperor himself wore his dragon robe with one of its nine dragons hidden from view.