Gate of Nations is the name of a small palace in the northeast of Persepolis and in front of the entrance stairs. The reason for its naming is that the representatives of different nations first entered through this gate and then were led to different palaces, so the shape of this gate should be such that it reminds everyone of the power and glory of the Achaemenids. Ziba was built by the order of Xerxes and includes a relatively small hall with three doors and four columns.