“The Tower of Babel,” is an 80-foot tower art installation of 30,000 books created by Argentinean artist Marta Minujín to celebrate Buenos Aires being the 2011 World Book Capital as named by UNESCO. The tower stood from May 7 to May 28, 2011, and when it was taken down some of the books (of different languages) were donated to visitors, while the remaining books will build a new “Library of Babel.” (via)