elevations, and surmounted by towering chapels. Their fires, burning in perpetual adoration of the gods, presented a most impressive spectacle at night. The grandest and most conspicuous of them all was the temple of Huitzilopochtli, which stood in the centre of the city, at the junction of the four avenues, so as to be ever before the eyes of the faithful. It formed a solid stone-faced pyramid about 375 feet long and 300 feet broad at the base, 325 by 250 feet at the summit, and rose in five superimposed, perpendicular terraces to the height of 86 feet. Each terrace receded six feet from the edge of the one beneath, and the stages were so placed that a circuit had to be made of each ledge to gain the succeeding flight, an arrangement equally suited for showy processions and for defence. Surrounding the pyramid was a battlemented stone wall 4800 feet in circumference, and through this led four gates, surmounted by arsenal buildings, facing the four avenues.4
The pyramid was quite modern, and owed its erection to Ahuitzotl, who for two years employed upon it an immense force of men, bringing the material from a distance of three or four leagues.
It was completed in 1486, and consecrated with thousands of victims. The rich and devout brought, while it was building, a mass of treasures, which were buried in the mound as an offering to the gods, and served subsequently as a powerful incentive for the removal of every vestige of the structure.
The present cathedral occupies a portion of the site.5
The appearance of the city was likewise improved by terraces of various heights serving as foundation for the dwellings of rich traders, and of the nobles who were either commanded to reside at the capital or attracted by the presence of the court.