The Paris Universal Exposition of 1900 marked the summit of Art Nouveau in Paris, bringing together many of the artists and designers who pioneered the style, and making the style known to the forty-eight million visitors to the Exposition. Art Nouveau architecture was highlighted in the interiors of the two major pavilions of fine arts, the Grand Palais and the Petit Palais. It was also prominent in the Palace of Decorative Arts, where works of Louis Majorelle and René Lalique, Daum, and other French designers were displayed. The Paris Métro, completed shortly after the Exposition opened, featured the Art Nouveau edicules designed for the stations by Hector Guimard.