Brussels Planetarium
The Planetarium of the Royal Observatory of Belgium (Dutch: Planetarium van de Koninklijke Sterrenwacht van België; French: Planétarium de l'Observatoire royal de Belgique; German: Planetarium der Königlichen Sternwarte von Belgien), commonly known as the Brussels Planetarium (Dutch: Planetarium van Brussel; French: Planétarium de Bruxelles; German: Planetarium von Brüssel), is the country's primary planetarium. The planetarium was first established during the Brussels International Exposition of 1935 as the Alberteum Aedes Scientiae under the patronage of King Albert I; it closed in 1966.