It’s passed around in countless Internet memes.
Downloadable as desktop wallpaper.
Posted in Instagram photos.
Found painted on cafe walls.
Posted on the back of north-bound RVs.
Stuck in the sidebars of travel blogs.
Spend a day or two researching travel and you’ll run across this quote from Mark Twain:
Twenty years from now you will be more disappointed by the things that you didn’t...