ESO Headquarters Extension / Auer Weber

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Text description provided by the architects. ESO, the European Organisation for Astronomical Research in the Southern Hemisphere, is the foremost intergovernmental astronomy organisation in Europe and the world's most productive astronomical observatory. ESO operates three sites in Chile — La Silla, Paranal and Chajnantor — on behalf of its fifteen member states. Together with its international partners, ESO built ALMA (Atacama Large Millimeter/submillimeter Array) and is presently designing the European Extremely Large Telescope (E-ELT).