Dear Atlas is Atlas Obscura’s travel advice column, answering the questions you won’t find in traditional guidebooks. Have a question for our experts? Submit it here. * * * Dear Atlas, Route 66! The completist in me wants to do every inch of it, but the realist in me knows that I can’t afford a vacation of that length. If I want to get the Route 66 feel without doing the whole thing, what parts are not to be missed? As much as Route 66 is an icon of Americana…