The portico of the Hall of a Hundred Columns was flanked on either side by a colossal bull, standing at the inner angle of the antes, and thus in some degree narrowing the entrance. Its columns were fluted, and had in every case the complex capital, which occurs also in the great propylaea and in the Hall of Xerxes. It was built of the same sort of massive blocks as the south-eastern edifice, or Ancient Palace--blocks often ten feet square by seven feet thick, and may be ascribed probably to the same age as that structure. Like that edifice, it is situated somewhat low; it has no staircase, and no inscription. We may fairly suppose it to have been the throne-room or great hall of audience of the early king who built the South-eastern Palace. We have now to describe the most remarkable of all the Persepolitan edifices--a building the remains of which stretch nearly 350 feet in one direction, while in the other they extend 246 feet. Its ruins consist almost entirely of pillars, which are divided into four groups. The largest of these was a square of thirty-six pillars, arranged in six rows of six, all exactly equidistant from one another, and covering an area of above 20,000 square feet. On three sides of this square, eastward, northward, and westward, were magnificent porches, each consisting of twelve columns, arranged in two rows, in line with the pillars of the central cluster. These porches stood at the distance of seventy feet from the main building, and have the appearance of having been entirely separate from it. They are 143 feet long, by thirty broad, and thus cover each an area of 4260 feet. The most astonishing feature in the whole building is the height of the pillars. These, according to the measurements of M. Flandin, had a uniform altitude throughout the building of sixty-four feet. Even in their ruin, they tower over every other erection upon the platform, retaining often, in spite of the effects of time, an elevation of sixty feet.