You've probably seen them: camper vans, Airstreams, and old RVs chugging down the road, heading off to some impossibly remote mountain pass, trout stream, or Wal-Mart parking lot, carrying the sorts of adventurers who are more concerned with experience than the size of their house. What they've given up in possessions and comfort, they make up for in enthusiasm and opportunities of the open road. Erik Nelson talked to four of these wanderers to find out why they chose to live like this, and how they customized their trailers, vans, tiny homes, and RVs. Here, he presents stories from their lives on the road.