But the most important building at Persepolis, “one of the most stupendous relics of antiquity,” is the great =Palace of Xerxes=. Elevated on a terrace of its own, twenty feet high, which was ascended on the north side by four flights of steps, it occupied an area of one hundred thousand square feet, more than double that of the Great Hall at Karnak, and larger than that of any Gothic cathedral in Europe, Milan and Seville alone excepted. Two rows of six columns supported each of the three porticoes, and six times six the ceiling of the Hall: in which combination one may perhaps detect a symbol of the Six Helpers of Ahuramazda, “the spiritual Wise One” or “Great Wisdom.” The columns, including base and capital, rose to a height of 65 feet, which may be compared with the 69 feet of the central nave columns in the Hall of Karnak. The latter, however, had a diameter of 12 feet, and were separated by intervals of scarcely twice that width; while those in Xerxes’ palace were set at a comparatively far greater distance from one another and measured in diameter only about 5 feet. Moreover, instead of a minimum of light percolating through a clerestory as at Karnak, the light and air streamed freely through the windows in the walls of Xerxes’ palace, so that in every respect the impression produced by the two halls must have been very different. The grandeur of Karnak was weighted down with mystery and awe, while Xerxes’ “lordly pleasure house” was an exalted symbol of the Zoroastrian belief in the joy of life. For in addition to the grandeur of its structural features, the imagination must picture the accompanying gladness of marble floors, water basins, fountains, and flowers, and varicoloured rugs and hangings. The walls, also, may have been resplendent with brilliantly enamelled tiles as in Xerxes’ other palace at =Susa=, where the French explorer, M. Dieulafoy, discovered the magnificent frieze of archers, a frieze of lions, and other decorations executed in bright-coloured enamels on concrete blocks. That Xerxes spared no pains to render his palace at Persepolis as superb as possible may be inferred from the columns in the hall and north portico. For in them the double capital of beasts does not rest directly on the fluted shafts, but is supplemented by two lower members; the first a curious arrangement of scrolls or volutes, the second a sort of conventionalised calyx of the lotus, beneath which, in bell-like form, is a conventionalisation of pendant leaves. In the volutes a suggestion of the Ionic capital has been detected, while the lower points to an Egyptian origin.