A small building, at the distance of about twenty or twenty-five yards from the eastern wall of the palace of Xerxes, possesses a peculiar interest, in consequence of its having some claims to be considered the most ancient structure upon the platform. It consists of a hall and portico, in size, proportions, and decoration almost exactly resembling the corresponding parts of Darius’s palace, but unaccompanied by any trace of circumjacent chambers, and totally devoid of inscriptions. The building is low, on the level of the northern, rather than on that of the central terrace, and is indeed half buried in the rubbish which has accumulated at its base. Its fragments are peculiarly grand and massive, while its sculptures are in strong and bold relief. There can be little doubt but that it was originally, like the hall and portico of Darius, surrounded on three sides by chambers. These, however, have entirely disappeared, having probably been pulled down to furnish materials for more recent edifices. Like the palaces of Xerxes and Artaxerxes Ochus, and unlike the palace of Darius, the building faces to the north, which is the direction naturally preferred in such a climate. We may suppose it to have been the royal residence of the earlier times, the erection of Cyrus or Cambyses, and to have been intended especially for summer use, for which its position well fitted it. Darius, wishing for a winter palace at Persepolis, as well as a summer one, took probably this early palace for his model, and built one as nearly as possible resembling it, except that, for the sake of greater warmth, he made his new erection face southwards. Xerxes, dissatisfied with the size of the old summer palace, built a new one at its side of considerably larger dimensions, using perhaps some of the materials of the old palace in his new building. Finally, Artaxerxes Ochus made certain additions to the palace of Xerxes on its western side, and at the same time added a staircase and a doorway to the winter residence of Darius. Thus the Persepolitan palace, using the word in its proper sense of royal residence, attained its full dimensions, occupying the southern half of the great central platform, and covering with its various courts and buildings a space 500 feet long by 375 feet wide, or nearly the space covered by the less ambitious of the palaces of Assyria.