The site in Persepolis

The site in Persepolis

The site is marked by a large terrace with its east side abutting the K?h-e Ra?mat (“Mount of Mercy”). The other three sides are formed by a retaining wall, varying in height with the slope of the ground from 13 to 41 feet (4 to 12 metres); on the west side a magnificent double stair in two flights of 111 short stone steps leads to the top. On the terrace are the ruins of a number of colossal buildings, all constructed of a dark gray stone (often polished to a marble-like surface) from the adjacent mountain. The stone was cut with the utmost precision into blocks of great size, which were laid without mortar; many of them are still in place. Especially striking are the huge columns, 13 of which still stand in the audience hall of Darius I (the Great; reigned 522–486 BCE), known as the apadana, the name given to a similar hall built by Darius at Susa. There are two more columns still standing in the entrance hall of the Gate of Xerxes, and a third has been assembled there from its broken pieces.