The entire length of this staircase is 212 feet; its greatest projection in front of the line of the terrace whereon it abuts, is thirty-six feet.

The steps, which are sixteen feet wide, rise in the same gentle way as those of the lower or platform staircase.

The height of each is under four inches; and thus there are thirty-one steps in an ascent of ten feet.
The feature which specially distinguishes this staircase from the lower one already described is its elaborate ornamentation.

The platform staircase is perfectly plain.

The entire face which this staircase presents to the spectator is covered with sculptures.