P20091.JPG [8/9] Keywords: Library of Hadrian Caption: The Library of Hadrian. Detail of the eastern end of the of the "tetraconch" building. In the background is part of the original back wall of the Library of Hadrian. When the Library was constructed, the limestone blocks of this wall were covered by slabs of marble veneer. During the Ottoman occupation. the interior of the Library was used as the "Upper Bazaar" and had numerous wooden shops. View from the south.