Visiting a ghost town is one of the closest things we have to time travel. If left undisturbed, the town remains suspended in time; perpetually stuck in the year it was abandoned. Fortunately, some ghost towns have been incorporated into state and national parks, which tend to leave them in their state of natural ruin—the most famous example being the former gold mining town of Bodie, California. But there are at least 3,800 ghost towns located throughout the United States (in a variety of conditions), and on occasion, entire towns are up for sale. While owning your own ghost town...