Stock Photo - The dust-covered map reading room seen during a tour of the construction site of the Staatsbibliothek Unter den Linden, one of the main buildings of the Berlin State Library, in Berlin, Germany, 07 April 2017. 80 per cent of the renovation work on the library that was opened by German Emperor Wilhelm II in 1914 has been completed in accordance with regulations governing monument preservation. Photo: Rainer Jensen/dpa | usage worldwide. - Berlin/Berlin/Germany

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