Napoleon III style
The Napoleon III style was a highly eclectic style of architecture and decorative arts, which used elements of many different historical styles,and also made innovative use of modern materials, such as iron frameworks and glass skylights. It flourished during the reign of Emperor Napoleon III in France (1852–1871) and had an important influence on architecture and decoration in the rest of Europe and the United States. Major examples of the style include the Opéra Garnier in Paris by Charles Garnier (1862–71), the Bibliothèque nationale de France. and the Church of Saint Augustine (1860–1871). The architectural style was closely connected with Haussmann's renovation of Paris carried out during the Second Empire; the new buildings, such as the opera, were intended as the focal points of the new boulevards.
Napoleon III style
While the academic painters dominated the Salon, new artists and new movements rose to prominent prominence under Napoleon III. 
Gustave Courbet (1819–1872) was the leader of the school of realist painters during the Second Empire who depicted the lives of ordinary people and rural life, as well as landscapes. He delighted in scandal and condemned the art establishment, the Academy of Fine Arts, and Napoleon III. In 1855, when his submissions to the Salon were rejected, he put on his own exhibit of forty of his paintings in a nearby building. In 1870, Napoleon III proposed giving the Legion of Honour to Courbet, but Courbet disdainfully rejected the offer.