Read it through once

On the one hand, a mighty sea of yellow sand stretched away toward the ends of the earth, solemn, silent, shorn of vegetation, its solitude uncheered by any forms of creature life; on the other, the Eden of Egypt was spread below us--a broad green floor, cloven by the sinuous river, dotted with villages, its vast distances measured and marked by the diminishing stature of receding clusters of palms. It lay asleep in an enchanted atmosphere. There was no sound, no motion. Above the date-plumes in the middle distance, swelled a domed and pinnacled mass, glimmering through a tinted, exquisite mist; away toward the horizon a dozen shapely pyramids watched over ruined Memphis: and at our feet the bland impassible Sphynx looked out upon the picture from her throne in the sands as placidly and pensively as she had looked upon its like full fifty lagging centuries ago.