Brussels, the capital of Belgium, played a vital role in the history of modern architecture at the turn of the century. Since 1890 a group of young architects such as Victor Horta (1861–1947), Paul Hankar (1861–1901), O. van Rijselberghe (1855–1929), and Henri van de Velde (1863–1957), to name just a few, were essential in creating a new art: the Art Nouveau. Versatile in many disciplines, their buildings would be designed into the finest detail encompassing building facades, interior spaces, decorative structures, furniture, wallpaper designs, doorknobs, and sometimes even the dress for the hostess. This aesthetic quest in search for perfect harmony would dominate the avant-garde architecture until the eve of World War I. Encyclopedia of 20th-century architecture 328 During the Interbellum, movements with more vigor and amplitude promoted a rationalization of the building process. In order to solve the problems of Brussels’s overcrowded inner-city area, garden cities were developed in...