Since this week is our "Shameless Tourism" show, we decided to enlist our very own Diana Nyad to take a classic bus tour of Las Vegas, hoping that she might discover, and embrace, her "inner-tourist." Diana grudgingly passes on the casinos, shows, and all-you-can-eat buffets that have made Vegas famous, and is instead treated to a tour featuring an underwhelming chocolate factory and a cactus farm which boasts over 300 varieties of the desert plant. She takes the tour -- but can our host truly make the transformation from Savvy Traveler to Shameless Tourist?