That former den of pirates, the city of Algiers is situated on the shores of a pretty deep bay, by which the northern coast of Africa, is here indented, and may be said to form an irregular triangular figure, the base line of which abuts on the sea, while the apex is formed by the Cassaubah, or citadel, which answered the double purpose of a fort to defend and awe the city, and a palace for the habitation of the Dey and his court. The hill on which the city is built, slopes rather rapidly upwards, so that every house is visible from the sea, in consequence of which it was always sure to suffer severely from a bombardment. The top of the hill has an elevation of nearly five hundred feet, and exactly at this point is built the citadel; the whole town lying between it and the sea. The houses of Algiers have no roofs, but are all terminated by terraces, which are constantly whitewashed; and as the exterior walls, the fort, the batteries and the walls are similarly beautified, the whole city, from a distance, looks not unlike a vast chalk quarry opened on the side of a hill.

The fortifications towards the sea are of amasing strength, and with the additions made since Lord Exmouth's attack, may be considered as almost impregnable. They occupy the entire of a small island, which lies a short distance in front of the city, to which it is connected at one end by a magnificent mole of solid masonry, while the other which commands the entrance of the port, is crowned with a battery, bristling with cannon of immense calibre, which would instantly sink any vessel which should now attempt to occupy the station taken by the Queen Charlotte on that memorable occasion.

On the land side, the defences are by no means of equal strength, as they were always considered rather as a shelter against an insurrectionary movement of the natives, than as intended to repulse the regular attacks of a disciplined army. In fact defences on this side would be of little use as the city is completely commanded by different hills, particularly that on which the Emperor's fort is built, and was obliged instantly to capitulate, as soon as this latter had fallen into the hands of the French, in 1830.

There are four gates; one opening on the mole, which is thence called the marine gate, one near the citadel, which is termed the new gate; and the other two, at the north and south sides of the city, with the principal street running between them. All these gates are strongly fortified, and outside the three land gates run the remains of a ditch, which once surrounded the city, but is now filled up except at these points. The streets of Algiers are all crooked, and all narrow. The best are scarcely twelve feet in breadth, and even half of this is occupied by the projections of the shops, or the props placed to support the first stories of the houses, which are generally made to advance beyond the lower, insomuch that in many places a laden mule can scarcely pass. Of public buildings, the most remarkable is the Cassaubah, or citadel, the situation of which we have already mentioned. It is a huge, heavy looking brick building, of a square shape, surrounded by high and massive walls, and defended by fifty pieces of cannon, and some mortars, so placed as equally to awe the city and country. The apartments set apart for the habitation of the Dey and the ladies of his harem, are described as extremely magnificent, and abundantly supplied with marble pillars, fountains, mirrors, carpets, ottomans, cushions, and other articles of oriental luxury; but there are others no less valuable and curious, such as the armory, furnished with weapons of every kind, of the finest manufacture, and in the greatest abundance, the treasury, containing not only a profusion of the precious metals, coined or in ingots, but also diamonds, pearls, rubies, and other precious stones of great value; and lastly, the store rooms of immense extent, in which were piled up the richest silk stuffs, velvets, brocades, together with wool, wax, sugar, iron, lead, sabre-blades, gun barrels, and all the different productions of the Algerine territories; for the Dey was not only the first robber but the first merchant in his own dominions.

Next to the Cassaubah, the mole with the marine forts, presented the handsomest and most imposing pile of buildings. The mole is no less than one thousand three hundred feet in length, forming a beautiful terrace walk, supported by arches, beneath which lay splendid magazines, which the French found filled with spars, hemp, cordage, cables, and all manner of marine stores. At the extremity of the mole, lay the barracks of the Janissaries, entrusted with the defence of the marine forts, and consisting of several small separate chambers, in which they each slept on sheepskin mats, while in the centre was a handsome coffee-room. The Bagnios were the buildings, in which Europeans for a long time felt the most interest, inasmuch as it was in these that the Christian slaves taken by the corsairs were confined. For many years previous to the French invasion, however, the number of prisoners had been so trifling, that many of these terrific buildings had fallen to decay, and presented, when the French army entered Algiers, little more than piles of mouldering ruins. The inmates of the Bagnio when taken by the French were the crews of two French brigs, which a short time before had been wrecked off Cape Bingut, a few French prisoners of war made during their advance, and about twenty Greek, and Genoese sailors, who had been there for two years; in all about one hundred and twenty. They represented their condition as bad, though by no means so deplorable as it would have been in former days. The prison was at first so close, that there was some danger of suffocation, to avoid which the Turks had made holes in the walls; but as they neglected to supply these with windows or shutters of any kind, there was no means of excluding wind or rain, from which consequently they often suffered.