There are a lot of people who have never heard the term railfanning. But many people are familiar with the concept.

The online encyclopedia Wikipedia defines a railfan as "a person who is strongly interested, in an amateur capacity, in railroads. Railfans can be found worldwide." True enough.

Along the rails of America, stretching from one coast to another, you will see people standing beside the tracks enjoying the splendor of trains. Whether it is a freight train, a passenger train or an excursion train, little parallels the adrenaline rush caused by a train barreling past at 60 mph.

For More: Railfanning: ‘You’re going to do what?’

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