The Atomium is a landmark modernist building in Brussels, Belgium, originally constructed as the centrepiece of the 1958 Brussels World's Fair. Designed by the engineer André Waterkeyn and the architects André and Jean Polak as a tribute to scientific progress, as well as to symbolise Belgian engineering skills at the time, it is located on the Heysel/Heizel Plateau in Laeken, where the exhibition took place. It is the city's most popular tourist attraction, and serves as a museum, an art centre and a cultural destination.

Brussels, officially the Brussels-Capital Region, is a region of Belgium comprising 19 municipalities, including the City of Brussels, which is the capital of Belgium. The Brussels-Capital Region is located in the central portion of the country and is a part of both the French Community of Belgium and the Flemish Community, but is separate from the Flemish Region and the Walloon Region, located less than 4 kilometres (2.5 mi) to the south. Historically Dutch-speaking, Brussels saw a language shift to French from the late 19th century. Nowadays, the Brussels-Capital Region is officially bilingual in French and Dutch, although French is the majority language and lingua franca. Brussels is also increasingly becoming multilingual. English is spoken widely and many migrants and expatriates speak other languages as well.