The Brussels Exhibition Centre, also known as Brussels Expo, is the primary event complex in Brussels, Belgium. Located on the Heysel/Heizel Plateau in Laeken, the twelve halls that comprise it are used for the largest national and international trade fairs, exhibitions and other events. With 115,000 m2 (1,240,000 sq ft) of facility space, they constitute the largest exhibition space in the Benelux. They are also a remarkable witness to the evolution of construction techniques during the 20th century.