The Atomium is the Brussels landmark built for the 1958 World’s Fair and shaped as an iron crystal model.
Designed by engineer André Waterkeyn, the structure represents an iron crystal magnified 165 billion times. It consists of nine large spheres connected by tubes, reflecting the nine provinces of Belgium as understood at the time of its construction. The landmark was intended to celebrate scientific progress and the peaceful uses of atomic energy.
The Atomium was originally planned as a temporary exhibition structure, but its popularity led to its preservation. Its stainless-steel-clad spheres contain exhibition spaces, and the upper sphere provides views across Brussels. The building is sometimes mistaken for a futuristic tower, but its design is specifically based on the body-centred cubic structure of iron.
A major renovation completed in 2006 restored its exterior and improved visitor facilities. It remains one of Belgium’s most recognizable modern landmarks.