Naqsh-e Rustam is the name of an ancient complex in the village of Zangiabad, north of Marvdasht, Fars province of Iran, located 6 km from Persepolis.
In this ancient site there are monuments from Elymians, Achaemenids and Sasanians, and from about 1200 BC to 625 AD, it has always been important due to the four tombs of the Achaemenid kings, several rock relief of important events of the Sassanid era, Ka’ba-ye Zartosht and one ruined rock relief of the Elamites. Religiously and nationally, this site was very important in the Sassanid period.
Ka’ba-ye Zartosht is the name of a stone quadrangular and stepped structure, its distance from the mountain is 46 meters, and it is situated exactly opposite Darius II’s tomb. The material of the structure is white and high limestone, its height, including the triple stairs, reaches 14.12 meters.
There is only one the entrance door which is 1.75 m high and 87 cm wide, and the door has two heavy stands. The trace of the bottom and upper heels of each stands shows us that they rolled out. This port is accessed through the chamber by a stone staircase with 30 steps. This structure is built in the Achaemenid era and there is no information about its name. But in Sassanid era they called it Bon Khanak, and the phrase Ka’ba-ye Zartosht has been used for the structure in the contemporary era, since the fourteenth century.
The oldest rock relief is related to the Elam era, which depicted the figures of the two gods and goddesses and the king and the queen. But later in the Sassanid era, Bahram II erased some part of this rock relief and carved its figure and its courtiers instead.
Ka’ba-ye Zartosht is a stone building in these areas which is similar to a tower, which was probably made during the Achaemenid period, its usage did not discover yet; Above the three corners of this building, there are two inscriptions written by Shapur I and Kartur. These inscriptions are historically valuable. Four catacombs are carved in the center of Rahmat mountain, which belongs to Darius the Great, Xerxes, Artaxerxes I, Artaxerxes II. All of these tombs have the same features.