Luxembourg, Andorra, Monaco and San Marino unite in a facade representing the different styles of architecture which prevail in the several states: 1. A portion faintly suggesting the ancient palace of Luxembourg, to-day the residence of Prince Henry of Holland; 2. An entrance erected by the principality of Monaco as the model of that of the royal palace; 3. A window contributed by San Marino, and showing that the prevalent type in the little republic is more useful than ornamental; 4. A balustrade surmounting the facade, supplied by the republic of Andorra. Portugal has an imitation in cream-colored plaster of a Gothic church-entrance, and a highly-enriched arch with flanking towers, whose canopied niches have figures of warriors and wise men. Holland shows an architecture of two hundred years ago, the counterpart of the houses we see in the old Dutch pictures. It is of dark red brick with stone courses, and a tall slate roof behind its balustered parapet. We are at the end of the Street of Nations, somewhat under a third of a mile in length. It is evening, and the sun in this latitude--for we are farther north than Quebec--seems in no hurry to reach the horizon. Two hours ago the whistle sounded "No more steam," and the life of the building went out. The attendants, tired of the show and _blases_ or "used up," according to their nationality, with exhibitions, have shrouded their cases in sack-cloth and gone to sip ordinaire, absinthe or bitter ale. I sit on a terrace of the Champ de Mars, the gorgeous building at my back, and look riverward. Before me stretches away the green carpet of sward one hundred feet wide and six hundred long, a broad level band of emerald reaching to the gravel approach to the Pont d'Iena, each side of which is guarded by a colossal figure of a man leading a horse. The gravel around the _tapis vert_ is black with the figures of those whom the fineness of the evening has induced to take a parting stroll in the ground before retiring. Flanking the gravel-walks the ground is more uneven, and Art, in imitation of the wilder aspects of Nature, has done what the limited space permitted to enhance the allied beauties of land and water, where Each gives each a double charm, Like pearls upon an Ethiop's arm. On the left is a rockery and waterfall on no mean scale, with a romantic little lake in front. On the right a rocky island in a corresponding lake is crowned with a thatched pavilion, the reflection of which shines broken in the water ruffled by the evening breeze. Groups of detached buildings hem in the view on each side, and their flags wave with the sky for a background. Paris is invisible: at this point the grounds are isolated from outside view.