Why does a train whistle bring on a feeling of nostalgia? Perhaps it’s because many of us remember a favorite novel or movie that took place on a train, and the story told of danger and excitement. There’s a sense of romance about a train that simply doesn’t exist on a modern jet plane. Several railroad companies are taking advantage of the nostalgia for train travel: They are offering unique tours for travelers who aren’t in a hurry and who enjoy the romance of the past8