The shock of the First World War put an end to frivolous architectural decoration: architecture had to purge itself and concentrate on clean lines and angles. The new style of Art Deco emerged, based on an attractive interpretation of geometry. At the same time, a handful of architects were revolutionising architectural philosophy. For them, a house was “a machine for living in” where functionality was paramount. This tour shows the remarkable variety of the different architectural trends in Brussels between 1918 and 1939, notably Art Deco and Modernism. The tour includes visits to at least two interiors, subject to availability, chosen from Forest Town Hall, Koekelberg Basilica Church, the RVS Insurance building (now SD Worx) and the Van Buuren museum, an Art Deco masterpiece.