This library, known as the “Trés Grande Bibliothèque” (Very Large Library) was built in 1996 in an industrial area of Paris by the river Seine. Four towers, shaped to recall four opened books were designed to house the Biblioth豵e Nationale de France collection of books and manuscripts.

More than 10 millions of books are store behind these glasses, protected from the light by wooden boards.

You can see in the glass reflection, on the left, the opposite tower (small side) and on the right the oppposite tower (long side of the rectangle).