(re: GK Tourism) I’d LOVE to visit those places, especially New Orleans. I plan on it one day. (inspired by GK of course!) There is, however, a traveler who visited Rennes le Chateau and wrote about his journey here:
http://www.virtualtourist.com/m/4397a/17581/
He refers to GK often and how the two differ and are alike. He said that he slept at the Devil’s Armchair!