This religious edifice is masterfully constructed, and within it stands a lighthouse, unmatched on the face of the earth in its structure and the strength of its bonds. Its stones are from the heart of the dunes, and lead has been poured into its joints, binding them together with unbreakable ties. The sea crashes against its stones from the north. Between this lighthouse and the city, there are three miles on land and sea. The height of this lighthouse is 300 cubits, measured by the Rashashi measure, which is three spans. Its total length is one hundred cubits, of which 96 cubits reach the threshold at its top, and the dome's guide is four cubits. From the ground to the middle belt is exactly 70 cubits, and from the middle belt to its top is 31 cubits. One ascends to its top via stairs built into its sides, as is customary in the stairs of minarets. The first set of stairs reaches halfway, then the building narrows on its four sides. Within this structure and beneath its stairs are built rooms. From this middle belt, its construction tapers upwards, narrower than the lower structure by the amount a person can encircle it from all sides. It also ascends from this belt via stairs that are smaller than the lower stairs. It contains eight windows on each face, through which light enters from outside to inside, allowing one to see their feet clearly as they ascend. This lighthouse is one of the wonders of the world in its height and magnificence. Its utility lies in the fact that a fire is lit within it, day and night, during the times when ships travel. The captains of the ships see this fire by day and night and navigate by it. It is visible from afar, as it appears like a star at night and emits smoke by day. This is because Alexandria is at the end of the plains, connected to it by bays and shores, with no mountains or landmarks to guide one. Were it not for this lighthouse, most ships would be lost.