La Géode is a mirror-finished geodesic dome that holds an Omnimax theatre in Parc de la Villette at the Cité des Sciences et de l'Industrie (City of Science and Industry) in the 19th arrondissement of Paris, France.
La Géode was designed by architect Adrien Fainsilber and engineer Gérard Chamayou. The geodesic dome is 36 metres (118 ft) in diameter, composed of 6,433 polished stainless steel equilateral triangles that form the sphere that reflects the sky. It stands on a reinforced concrete based, which is attached to Cité des Sciences et de l'Industrie, the largest science museum in Europe. La Géode officially opened on May 6, 1985. After a similar venue located in La Défense closed in 2001, La Géode became the only spherical building in the Île-de-France region of France. It cost 130 million French francs to build.
Before the name "Géode" was selected, other names were proposed, including humorous suggestions such as "Bouboule", "Irma", "Minouchette", "Double Zéro", and "Zézette".