To see the grey city rightly, and feel how grey it is, you must view it across these gorges. The more distant environs are detached from the city. They are cultivated in patches, and dotted with modern buildings of various degrees of irrelevance. But these are mere accidents, which the place seems to ignore. The gorges themselves are part and parcel of the city, and they stand for the overflow of her sad and desolate spirit. Their sides are banks of rubbish--the wreckage and débris of a score of sieges, the accumulation of three thousand years. You look from the lower pool of Siloam in the valley of Hinnom, up a long dreary slope of dark grey rubbish, down which a horrible black stream of liquid filth trickles, tainting the air with its stench. Far off above you stands the wall, which in old days enclosed the pool. Here the city seems to have shrunk northwards, as if in some horror of conscience. The Field of Blood and the Hill of Evil Counsel are just across the gorge to the south. The valleys are full of tombs, those on the city side for the most part Mohammedan, while the lower slopes of Olivet are paved with the flat tombstones of Jews. What a stretch of history unrolls itself to the imagination of him who lingers on the sight of Jerusalem! The boundaries seem to dwindle, till that which stands there is the old grey battle-beaten fortress of the Jebusites, the last post held by her enemies against Israel. David conquers it, and the procession of priests and people bring up to its gate the ark, for the celebration of whose entrance tradition has claimed the 24th Psalm. A new city rises, and falls, and rises again, through more than twenty sieges and rebuildings. Assyrians, Babylonians, Romans, Moslems, Crusaders batter at its gates. The level of the streets rises through the centuries, till now the traveller walks on a pavement thirty or forty feet above the floor of the ancient city. To discover the old foundations, the explorers of our time have sunk shafts which at some parts of the wall touch bottom 120 feet below the present surface. Far below the slighter masonry of the present wall, with its battlemented Turkish work, lie the huge stones of early days, some of which bear still the marks of Phœnician masons.[14]