The jutting cornices of the roofs, often beautifully decorated, come together in a medley of angles and corners that practically roof the street over; and only here and there do you see a triangle or a parallelogram of the vivid brilliant blue that is the sky.

Besides being seven or eight storeys high, the houses are the narrowest in the world; I should think that their average width on the street front is ten feet.

So as you walk up this street where young Christopher lived you must think of it in these three dimensions towering slices of houses, ten or twelve feet in width: a street often not more than eight and seldom more than fifteen feet in width; and the walls of the houses themselves, painted in every colour, green and pink and grey and white, and trellised with the inevitable green window-shutters of the South, standing like cliffs on each side of you seven or eight rooms high.

There being so little horizontal space for the people to live there, what little there is is most economically used; and all across the tops of the houses, high above your head, the cliffs are joined by wires and clothes-lines from which thousands of brightly-dyed garments are always hanging and fluttering; higher still, where the top storeys of the houses become merged in roof, there are little patches of garden and greenery, where geraniums and delicious tangling creepers uphold thus high above the ground the fertile tradition of earth.

You walk slowly up the paved street.