Unquestionably Dan Brown is best known for his 2003 best-selling novel, The Da Vinci code.
The Da Vinci code, second in Brown's series about Robert Langdon, features religious symbolism, ancient beliefs, secret societies, contemporary political intrigue involving both religious and secular governments, and art.
If you enjoyed the religious conspiracy aspect of Brown's Langdon books, take a look at these titles.
If you enjoyed the combination of history and conspiracies (religious and otherwise) combined with the fast paced action of Dan Brown's books, consider these historical thrillers.
If you enjoy complex stories featuring intrigue, secrets, deception, fast action, adventure, puzzles, and conspiracies but don't require the religious aspect, take a look at these stories.