BRUSSELS, Belgium (AP) _ Architect Andre Polak, who helped design the Brussels Atomium momument for the 1958 World Fair, has died of a heart attack. He was 74.

Polak, who died Saturday, created the structure along with his brother, Jean, and an associate.

The structure resembles an iron molecule to symbolize the power of science, the atomic age and Belgian industrial acumen of the 1950s.

The nine huge spheres of the 335-foot-tall Atomium still dominate the cityscape of suburban Laken.