Expo 58

Expo 58 presented postwar reconstruction as a project of international cooperation and scientific advancement. Belgium hosted the first major world’s fair after the Second World War, at a moment shaped by nuclear weapons, the space race, decolonization, and rivalry between the United States and the Soviet Union.¹ The exhibition’s official theme, often rendered as “A World on the Move,” linked material progress with hopes for a more peaceful society. More than national promotion was involved: the fair used architecture, industrial design, transport, medicine, and communications to stage competing visions of modern life. Its optimism was therefore not politically neutral, since participating states used pavilions to display their economic systems, cultural identities, and technological achievements.

The site lay on the Heysel plateau in northern Brussels, an area already associated with major exhibitions and public events. Expo 58 attracted roughly 42 million visits during its six-month run, making it one of the most consequential international exhibitions of the postwar era.¹

The Atomium became Expo 58’s defining architectural image. Designed by engineer André Waterkeyn and architects André and Jean Polak, it enlarged the structure of an iron crystal nine billion times; its nine spheres represented the atoms in a body-centred cubic unit cell. Although conceived as a temporary exhibition structure, its striking form led to preservation and restoration, and it eventually became a permanent Brussels monument.

Other attractions displayed the fair’s confidence in spectacular environments. The Philips Pavilion, designed by Le Corbusier with Iannis Xenakis, combined an unusual hyperbolic architectural shell with an immersive multimedia presentation, Poème électronique, by Edgard Varèse. The pavilion was demolished after the fair, but its integration of architecture, projected imagery, and electronic sound became an important reference point in postwar experimental design.² National pavilions likewise treated buildings as visual arguments, using forms ranging from modernist transparency to deliberately traditional motifs.

Expo 58 made everyday technology part of a public vision of the future. Visitors encountered demonstrations involving nuclear energy, telecommunications, automation, transportation, domestic appliances, and medical science. The fair’s displays suggested that electricity, mass production, and new media could improve ordinary life, while also revealing how industrial design transformed machines into consumer objects.

The exhibition was also a contest of cultural diplomacy. The United States pavilion promoted consumer abundance, popular culture, and democratic institutions, while the Soviet pavilion emphasized heavy industry, space technology, and collective achievement. The Belgian Congo pavilion presented colonial rule through a carefully managed image of development and order, an approach increasingly challenged by anticolonial movements and the territory’s independence in 1960. Expo 58 thus captured both the confidence of the high-modernist era and the contradictions of a world moving toward the end of European empire.³

Expo 58’s legacy extends beyond the Atomium because the fair helped normalize immersive, cross-disciplinary exhibition design. The Philips Pavilion treated sound, light, film, and architecture as one environment rather than as separate exhibits; Varèse’s electronic score used spatially distributed loudspeakers, while Xenakis’s design drew on mathematical and musical ideas.² The fair also included religious, humanitarian, and educational presentations, showing that its account of progress was broader than engineering alone.

Several structures disappeared when the exhibition closed, leaving the Atomium as an unusually visible surviving fragment. Its continued life reflects a wider pattern in world’s-fair history: temporary displays often influence design and public memory more strongly than their physical remains suggest. In Belgium, the event also helped establish Brussels as a capital of international institutions and as a city associated with modern architecture, even though the fair’s colonial representations are now examined critically rather than accepted as neutral records.

World’s fair

A large international exhibition in which states, companies, and organizations present technology, culture, industry, and national identity.

Atomium

A 102-metre structure in Brussels representing an enlarged iron-crystal unit cell, built for Expo 58.

Philips Pavilion

A temporary Expo 58 building designed by Le Corbusier and Iannis Xenakis for an immersive multimedia work.

Cold War

The prolonged geopolitical rivalry between the United States, the Soviet Union, and their respective allies after the Second World War.