From the history of sushi in the USA to the Tokyo Tsukiji fish market with side tours into some of the most fantastic food porn I've ever read...
http://www.vanityfair.com/culture/features/2007/06/sushi200706?currentPage=1 It's a porntastic article even though I'm saddened to wonder if I've ever had real wasabi.
I really want to try the sake with pickled pit viper. Seriously.