At the heart of a great cliff lies the rock-cut tombs of four kings and a separate building similar to the sepulture of Cyrus the great. This construct is known as “Ka’beh-e Zardusht” or “the Cube of Zoroaster” is made of black and white stones some 12.6 meters high, which was probably built by Darius after his succession, imitating the royal temple of Pasargadae. Some believe the cube has been a religious edifice, others say it’s been a fire temple containing the sacred, eternal fire, many consider it as a provisional tomb until the permanent one was made, and some mention that it might have been a repository for royal standards or sacred texts.
Of the four rock-cut tombs, only one is identifiable because of its inscription and that is the tomb of Darius, his tomb is the third from the left as you face the cliff. Although there is no inscription in the remaining three tombs, they are believed to belong to Darius II, Artaxerxes I and Xerxes I. all the tomb display the same façade which from distance looks like a cross.
