#1 WORLDWIDE BESTSELLER - "Dr. Langdon is once again wrapped up in a global-scale event that could have massive ramifications on the world's religions. As he does in all his novels, Brown['s] extensive research on art, architecture, and history informs every page." --Entertainment Weekly Robert Langdon, Harvard professor of symbology, arrives at the ultramodern Guggenheim Museum Bilbao to attend the unveiling of a discovery...