On the whole, it seems probable that it resembled the great propylaea at the head of the stairs leading from the plain rather than the central propylaea just described.

Part of its ornamentation was certainly a colossal bull, though whether human-headed or not cannot be determined.
The fourth of the propylaea was on the terrace whereon stood the palace of Xerxes, and directly fronting the landing-place at the head of its principal stairs, just as the propylaea first described fronted the great stairs leading up from the plain.

Its dimensions were suited to those of the staircase which led to it, and of the terrace on which it was placed.

It was less than one fourth the size of the great propylaea, and about half that of the propylaea which stood the nearest to it.
The bases of the four pillars alone remain in situ; but, from the proportions thus obtained, the position of the walls and doorways is tolerably certain.
We have now to pass to the most magnificent of the Perse-politan buildings--the Great Pillared Halls--which constitute the glory of Arian architecture, and which, even in their ruins, provoke the wonder and admiration of modern Europeans, familiar with all the triumphs of Western art, with Grecian temples, Roman baths and amphitheatres, Moorish palaces, Turkish mosques, and Christian cathedrals.

Of these pillared halls, the Persepolitan platform supports two, slightly differing in their design, but presenting many points of agreement.