After looking in vain for the seat occupied by the priestess of the Unknown God, our traveler passes on and enters with a beating heart the charmed precincts of the Acropolis itself. The Propylaea, which he has been accustomed to regard too exclusively as a mere entrance-gate to the glories beyond, impresses him with its size and grandeur, and the little temple of Victory by its side with its elegance.[A] But the steepness of the ascent perplexes him. It seems impracticable for horses, yet he knows by unexceptionable testimony that the Athenian youth prided themselves upon driving their matched steeds in the great Panathenaic procession which once every four years wound up the hill, bearing the sacred peplus to the temple of the goddess. A closer examination reveals the transverse creases of the pavement designed to give a footing to the beasts, as well as the marks of the chariot-wheels. Nevertheless, the ascent (and much more the descent) must have been a perilous undertaking, unless the teams were better broken than the various accounts of chariot-races furnished by the poets would indicate. Entering beneath the great gate, a little distance forward to the left may readily be found the site of the colossal bronze statue of the warrior-goddess in complete armor, formed by Phidias out of the spoils taken at Marathon. The square base, partly sunk in the uneven rock, is as perfect as if just put in readiness to receive the pedestal of that famous work. A road bending to the right and slightly hollowed out of the rock leads to the Parthenon. The outer platform which sustains this celebrated temple is partly cut from the rock of the hill and partly built up of common limestone. The inner one of three courses, as well as the whole superstructure, is formed of Pentelic marble of a compact crystalline structure and of dazzling whiteness. Long exposure has not availed to destroy its lustre, but only to soften its tone. The visitor, planting himself at the western front, is in a position to gain some adequate idea of the perfection of the noble building. The interior and central parts suffered the principal injury from the explosion of the Turkish powder magazine in 1687. The western front remains nearly entire. It has been despoiled, indeed, of its movable ornaments. The statues which filled the pediment are gone, with the exception of a fragment or two. The sculptured slabs have been removed from the spaces between the triglyphs, and the gilded shields which hung beneath have been taken down. Of the magnificent frieze, representing the procession of the great quadrennial festival, only the portion surrounding the western vestibule is still in place.[B] [Footnote A: The latter contains, among other relics of a balustrade which protected and adorned the platform of the temple, the exquisitely graceful torso of Victory untying her sandals, of which casts are to be seen in most of the museums of Europe.]