The first Art Nouveau houses and interior decoration appeared in Brussels in the 1890s, in the architecture and interior design of houses designed by Paul Hankar, Henry van de Velde, and especially Victor Horta, whose Hôtel Tassel was completed in 1893. It moved quickly to Paris, where it was adapted by Hector Guimard, who saw Horta's work in Brussels and applied the style for the entrances of the new Paris Métro. It reached its peak at the 1900 Paris International Exposition, which introduced the Art Nouveau work of artists such as Louis Tiffany. It appeared in graphic arts in the posters of Alphonse Mucha, and the glassware of René Lalique and Émile Gallé.