The Atomium in Laeken, Brussels, was designed by André and Jean Polak, with André Waterkeyn as engineer, as the centerpiece of Expo 58. The article names no client. Foundations began in March 1956, and it was completed before Expo 58 opened on April 17, 1958. It was designed to last six months.
The infobox lists Modernism. Stainless-steel-clad spheres, originally aluminum, connect through steel tubes. The structure is 335 feet (102 m) high, each sphere is 59 feet (18 m) across, and the tubes are 10 feet (3 m) in diameter. A lift carries 22 people.
It closed in October 2004 and reopened on February 18, 2006 after a 26 million euro renovation by Jacques Delens and BESIX. It now serves as a museum, art center and cultural venue, with a restaurant in the top sphere. It draws over 600,000 visitors a year. The article gives no hours or ticket prices.

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