Dan Brown’s 5 Favorite Places in Prague

"The door that holds the Bohemian crown jewels at St. Vitus Cathedral in Prague has seven locks, the keys to which are held by seven people — the president of the Czech Republic, the archbishop of Prague and five others in notable positions.

It was details like this that inspired Dan Brown to set his latest novel, "The Secret of Secrets," out this month, in Prague. "I like to use a location as a character in my novels," said the "Da Vinci Code" author, who has now written six novels featuring the protagonist Robert Langdon, a Harvard symbology professor. "Prague is perfect for Langdon," Mr. Brown said. "There are twisting cobblestoned alleyways, churches, crypts, hundreds of spires."

And that door: "What's more Langdon than a door with seven locks?" Mr. Brown said."

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