The later buildings extend over much space. The adjuncts to these buildings, especially the avenues of sphinxes, are planned so as to produce an air of stately grandeur, and in them some degree of external effect is aimed at.

The walls are uniformly thick, and often of granite or of stone, though brick is also met with; e. g., some of the smaller pyramids are built entirely of brick. In all probability the walls of domestic buildings were to a great extent of brick, and less thick than those of the temples; hence they have all disappeared.

The surface of walls, even when of granite, was usually plastered with a thin fine plaster, which was covered by the profuse decoration in color already alluded to.

The walls of the propylons tapered from the base toward the top, and the same thing sometimes occurred in other walls. In almost all cases the stone walls are built of very large blocks, and they show an unrivaled skill in masonry.

The roofing which remains is executed entirely in stone, but not arched or vaulted. The rock-cut tombs, however, contain ceilings of an arched shape, and in some cases forms which seem to be an imitation of timber roofing. The roofing of the hypostyle hall at Karnak provides an arrangement for admitting light very similar to the clerestory of gothic cathedrals.

The openings were all covered by a stone lintel, and consequently were uniformly square-headed. The interspaces between columns were similarly covered, and hence Egyptian architecture has been, and correctly, classed as the first among the styles of trabeated architecture. Window openings seldom occur.

The columns have been already described to some extent. They are almost always circular in plan, but the shaft is sometimes channeled. They are for the most part of sturdy proportions, but great grace and elegance are shown in the profile given to shafts and capitals. The design of the capitals especially is full of variety, and admirably adapts forms obtained from the vegetable kingdom. The general effect of the Egyptian column, wherever it is used, is that it appears to have, as it really has, a great deal more strength than is required. The fact that the abacus (the square block of stone introduced between the moulded part of the capital and what it carries) is often smaller in width than the diameter of the column aids very much to produce this effect.

Mouldings are very rarely employed; in fact, the large bead running up the angles of the pylons, etc., and a heavy hollow moulding doing duty as a cornice, are all that are usually met with. Sculpture and carving occur occasionally, and are freely introduced in later works, where we sometimes find statues incorporated into the design of the fronts of temples. Decoration in color, in the shape of hieroglyphic inscriptions and paintings of all sorts, was profusely employed, and is executed with a truth of drawing and a beauty of coloring that have never been surpassed. Almost every object drawn is partly conventionalized, in the most skillful manner, so as to make it fit its place as a piece of a decorative system.

The character is gloomy, and to a certain extent forbidding, owing to the heavy walls and piers and columns, and the great masses supported by them; but when in its freshness and quite uninjured by decay or violence, the exquisite coloring of the walls and ceilings and columns must have added a great deal of beauty: this must have very much diminished the oppressive effect inseparable from such massive construction and from the gloomy darkness of many portions of the buildings. It is also noteworthy that the expenditure of materials and labor is greater in proportion to the effect attained than in any other style. The pyramids are the most conspicuous example of this prodigality. Before condemning this as a defect in the style, it must be remembered that a stability which should defy enemies, earthquakes, and the tooth of time, was far more aimed at than architectural character; and that, had any mode of construction less lavish of material, and less perfect in workmanship, been adopted, the buildings of Egypt might have all disappeared ere this.