As countries around the world move toward legalization and more and more weed enthusiasts take to the skies for business and pleasure, it is becoming increasingly more important to know the rules for possessing weed – which can vary widely from place to place. Can you travel with weed? Across state lines? On a plane? How do you purchase it legally? What are the best places for weed vacations? Etc. etc. Here’s a handy, up-to-date Cannabis Travel Guide from Seeker.