[Illustration:  PLATE XXV.]

The Firuzabad palace has a length of above 390 and a width of above 180 feet.  Its supposed date is A.D. 450, or the reign of Isdigerd I. As usual the ground plan is an oblong square. [PLATE XXVI.] It is remarkable that the entire building had but a single entrance.  This was by a noble arch, above 50 feet in height, which faced north, and gave admission into a vaulted hall, nearly 90 feet long by 43 wide, having at either side two lesser halls of a similar character, opening into it by somewhat low semi-circular arches, of nearly the full width of the apartments.  Beyond these rooms, and communicating with them by narrow, but elegant doorways, were three domed chambers precisely similar, occupying together the full width of the building, each about 43 feet square, and crowned by elliptical domes rising to the height of nearly 70 feet. [PLATE XXVII., Fig. 1.] The ornamentation of these chambers was by their doorways, and by false windows, on the Persepolitan model.  The domed chambers opened into some small apartments, beyond which was a large court, about 90 feet square, surrounded by vaulted rooms of various sizes, which for the most part communicated directly with it.  False windows, or recesses, relieved the interior of these apartments, but were of a less elaborate character than those of the domed chambers.  Externally the whole building was chastely and tastefully ornamented by the tall narrow arches and reed-like pilasters already mentioned. [PLATE XXVII., Fig. 2.] Its character, however, was upon the whole “simple and severe;” nor can we quarrel with the judgment which pronounces it “more like a gigantic bastile than the palace of a gay, pavilion-loving people like the Persians.”

[Illustration:  PLATE XXVI.]

[Illustration:  PLATE XXVII.]

It is difficult to form any very decided opinion upon the architectural merits of the third and grandest of the Sassanian palaces, the well known “Takht-i-Ehosru,” or palace of Chosroe’s Anushirwan, at Ctesiphon.  What remains of this massive erection is a mere fragment, which, to judge from the other extant Sassanian ruins, cannot have formed so much as one fourth part of the original edifice. [PLATE XXVIII., Fig. 1.] Nothing has come down to our day but a single vaulted hall on the grandest scale, 72 feet wide, 85 high, and 115 deep, together with the mere outer wall of what no doubt constituted the main facade of the building.  The apartments, which, according to all analogy, must have existed at the two sides, and in the rear, of the great hall, some of which should have been vaulted, have wholly perished.  Imagination may supply them from the Firuzabad, or the Mashita palace; but not a trace, even of their foundations, is extant; and the details, consequently, are uncertain, though the general plan can scarcely be doubted.  At each side of the great hall were probably two lateral ones, communicating with each other, and capable of being