The general idea of the world city which a writer has pursued for the past age is confirmed in these two cities, and it begins to draw the actual condition of the city life from not only building but also politics and culture, the meal, the aspect such as an amusement. The power of the city of the West and the Orient and a difference in the space system are explained, and it tries to follow the particulars of the development of the city civilization connected even with the present day from two cities.