383. Rue de Rivoli, Paris, c. 1825. The part of the Rue de Rivoli first built by Percier and Fontaine for Napoleon I, looking toward the Place de la Concorde. Its single row of houses facing across the roadway onto greenery inspired the Regent, later George IV, to develop the Regent's Park terraces shortly thereafter.

384. PERCIER and FONTAINE. Elevation of a house on the Rue de Rivoli, 1806. This charming and unified façade is a basis for Haussmann's boulevards half a century later. Shops are hidden behind the arcades. Thus this street of Napoleon I has already, in germ at least, that mixture of residence and business functions which the English avoided.