Do you like architecture? Do you like Art Nouveau? Perfect! Perfect! The exhibition dedicated to Otto Wagner, one of the leading figures on the European architectural scene at the turn of the 19th and 20th centuries, is on display at the Cité de l'Architecture. An exceptional designer, a talented architect working in the synthesis of materials and arts, with an elegant and refined architecture, Otto Wagner understood that historicist architecture turned towards the past was in total contradiction with the political, economic and social dynamism of contemporary Austria. The exhibition, designed and produced in co-production with the Wien Museum to commemorate the centenary of his death, is the first monograph dedicated to him in France. Otto Wagner's masterpieces are particularly highlighted and the restitution of several interiors shows the refinement and elegance of his creations. Wagner's architecture is conceived as a total work of art, a Gesamtkunstwerk with its interior decorations and furniture, in a search for unity and coherence specific to the avant-gardes of the turn of the 19th and 20th centuries. For the first time, nearly 400 objects from Viennese and Parisian museums have been brought together to trace Otto Wagner's career. Of a very wide variety (art objects, paintings, models, photographs, films...) the works presented invite to discover, or rediscover, Otto Wagner's art in the Vienne 1900, and testify to the full range of his talents.