Trivia: The name of Langdon's editor, Jonas Faukman, is an anagram of Dan Brown's real life editor, Jason Kaufman.
Trivia: Throughout the book, the number 33 occurs as an important number within the Masonic Order - the best example being the highest rank of mason being a 33rd Degree. The book ends on Chapter 133, with what could be chapter 134 being an epilogue.