When 26-year-old systems engineer Mike Hudson got tired of living a less-than-exciting life in the United Kingdom, he decided to seriously mix things up. Sure, when most young people are dissatisfied with the way their lives are going, they take a vacation or go out for a night of debauchery to reset. They might even switch careers. But Hudson did things differently. He bought a van, converted it into an apartment, began traveling around Europe, and started a website, Van Dog Traveller, to document his journeys. The site details where he visits and shows how he has been able to...