The Heysel Plateau or Heysel Park, usually shortened to Heysel or Heizel, is a neighbourhood, park and exhibition space in Laeken, northern Brussels, Belgium, where the Brussels International Exposition of 1935 and the 1958 Brussels World's Fair took place. The Atomium, a symbolic 103-metre-tall modernist structure, originally built for Expo 58, is the most impressive monument on the Heysel Plateau and is now considered a landmark of Brussels.