Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,478 pages of information and 233,901 images on early companies, their products and the people who designed and built them.
1957 Built for the 1958 Brussels International Exhibition.
Designed by the engineer André Waterkeyn and architects André and Jean Polak.
The stainless steel-clad spheres are connected so that the whole forms the shape of an iron crystal magnified 165 billion times.
2004-2006 Renovations included replacing the faded aluminium sheets on the spheres with stainless steel. To help pay for renovations, the old aluminium was sold to the public as souvenirs.