The Atomium, built for the World's Fair of 1958, is the most impressive monument in the Heysel Park. The Centenary Palace (Dutch: Eeuwfeestpaleis, French: Palais du Centenaire) is one of the remaining buildings of the World's Fair of 1935. Currently it's still being used for trade fairs.
The Heysel Park is also the location of the Heysel Stadium, built in 1930. After the Heysel Stadium disaster it was rebuilt and renamed to King Baudouin Stadium.
Other interesting places on the Heysel are a large movie theatre (Kinepolis), a park which hosts miniature models of famous European buildings (Mini Europe), a subtropical water park (Océade) and a planetarium.