The city of Paris has notable examples of architecture of every period, from the Middle Ages to the 21st century. It was the birthplace of the Gothic style, and has important monuments of the French Renaissance, Classical revival, the Flamboyant style of the reign of Napoleon III, the Belle Époque, and the Art Nouveau style. The great Exposition Universelle (1889) and 1900 added Paris landmarks, including the Eiffel Tower and Grand Palais. In the 20th century, the Art Deco style of architecture first appeared in Paris, and Paris architects also influenced the postmodern architecture of the second half of the century.