Truly an unputdown-able book. Exciting and fast paced. Follow symbologist Robert Landgon's quest. You'll learn a lot about conspiracies of secret societies and the Catholic Church. Ancient history, architecture, and symbolism are also heavily referenced throughout the book. Oh, and I'm certain you'll get fascinated with the ambigrams. For me, 'twas the best of the Langdon's series.
I know there are a lot of Da Vinci code haters out there, but the shear heart pounding can't put the book down kind of feeling I got sitting alone in the seventh grade really opened my eyes to just how vivid and lively books can be.