What remains of Horta's Art Nouveau if we abstract the style and if we discard his typical vegetal vocabulary? The exhibition Victor Horta and the Grammar of Art Nouveau probes the fundamental themes and lines of force in the oeuvre of the most famous Belgian architect of all time. The intimate link between Horta's Art Nouveau and Leopold II's Congo Free State is also scrutinised for the first time. Curators: Iwan Strauven, Benjamin Zurstrassen