The DaVinci Code

I just finished listening to the audio book version of The DaVinci Code by Dan Brown. I really didn't know what the book was about, only that it's been popular lately and than both Vicki and Sara told me they enjoyed it. I got hooked from the start. I just wish I had picked up the unabridged version instead cuz now I wonder what I missed. Maybe I'll go pick up the unabridged one. The only difficulty with audio books is that there are sometimes parts of a book where it would be easier to look at on a page than to hear a narrator read it (such as the many "codes" mentioned in this book).

I'm thinking of reading another Dan Brown book. Which one should I read next?