Haussmann established one municipal school for boys and one for girls, in addition to the large network of schools run by the Catholic church. The reconstruction and enlargement of the city's oldest hospital, the Hôtel-Dieu de Paris on the Île-de-la-Cité. The completion of the last wing of the Louvre, and the opening up of the Place du Carousel and the Place du Palais-Royal by the demolition of several old streets. The building of the first railroad bridge across the Seine; originally called the Pont Napoleon III, now called simply the Pont National. Since 1801, under Napoleon I, the French government was responsible for the building and maintenance of churches. Haussmann built, renovated or purchased nineteen churches. New churches included the Saint-Augustin, the Eglise Saint-Vincent de Paul, the Eglise de la Trinité. He bought six churches which had been purchased by private individuals during the French Revolution. Haussmann built or renovated five temples and built two new synagogues, on rue des Tournelles and rue de la Victoire. Besides building churches, theaters and other public buildings, Haussmann paid attention to the details of the architecture along the street; his city architect, Gabriel Davioud, designed garden fences, kiosks, shelters for visitors to the parks, public toilets, and dozens of other small but important structures. The Haussmann building The most famous and recognizable feature of Haussmann's renovation of Paris are the Haussmann apartment buildings which line the boulevards of Paris. Street blocks were designed as homogeneous architectural wholes. He treated buildings not as independent structures, but as pieces of a unified urban landscape. In 18th-century Paris, buildings were usually narrow (often only six meters wide [20 feet]); deep (sometimes forty meters; 130 feet) and tall—as many as five or six stories. The ground floor usually contained a shop, and the shopkeeper lived in the rooms above the shop. The upper floors were occupied by families; the top floor, under the roof, was originally a storage place, but under the pressure of the growing population, was usually turned into a low-cost residence. In the early 19th century, before Haussmann, the height of buildings was strictly limited to 22.41 meters (73 ft 6 in), or four floors above the ground floor. The city also began to see a demographic shift; wealthier families began moving to the western neighborhoods, partly because there was more space, and partly because the prevailing winds carried the smoke from the new