In 1902, Edouard Hannon, an engineer at Solvay, and his wife Marie Desbard commissioned their friend Jules Brunfaut to design a corner house on Avenue Brugmann. Great fans of Art Nouveau, they asked the architect to draw inspiration from the work of Victor Horta, Ernest Blérot and Henry Van de Velde to create a made-to-measure house. Unfamiliar with Art Nouveau, Brunfaut nevertheless pulled off a master stroke, combining the Beaux-Arts style with a unique Belgian-French Art Nouveau style. The façade, marked by a beautiful interplay of volumes, features a particularly remarkable greenhouse, all curves and metal. The interior, meanwhile, immerses us in a dreamlike, symbolist world, with a monumental fresco by Paul Baudoüin and stained glass windows with elaborate plant motifs by Raphaël Evaldre. The house now houses a museum dedicated to the many facets of Art Nouveau in Belgium.

This visit can be incorporated into an outdoor tour.