The Innocents Abroad, Volume 6 by Mark Twain

A fast walker could go outside the walls of Jerusalem and walk entirely around the city in an hour. I do not know how else to make one understand how small it is. The appearance of the city is peculiar. It is as knobby with countless little domes as a prison door is with bolt-heads. Every house has from one to half a dozen of these white plastered domes of stone, broad and low, sitting in the centre of, or in a cluster upon, the flat roof. Wherefore, when one looks down from an eminence, upon the compact mass of houses (so closely crowded together, in fact, that there is no appearance of streets at all, and so the city looks solid,) he sees the knobbiest town in the world, except Constantinople. It looks as if it might be roofed, from centre to circumference, with inverted saucers. The monotony of the view is interrupted only by the great Mosque of Omar, the Tower of Hippicus, and one or two other buildings that rise into commanding prominence.

The houses are generally two stories high, built strongly of masonry, whitewashed or plastered outside, and have a cage of wooden lattice-work projecting in front of every window. To reproduce a Jerusalem street, it would only be necessary to up-end a chicken-coop and hang it before each window in an alley of American houses.