Expo 58, also known as the 1958 Brussels World's Fair , was a world's fair held on the Heysel Plateau in Brussels, Belgium, from 17 April to 19 October 1958. It was the first major world's fair registered under the Bureau International des Expositions (BIE) after World War II. The Brussels Exhibition Centre, also known as brussels expo, is the most important event complex in Brussels, Belgium. Located on the Heysel/Heizel Plateau in Laeken, the twelve halls that make up it are used for the largest national and international fairs, exhibitions and other events.