Back when it closed, it had been operating longer than any other. It holds the world record for the most forms of ways to get traction than any other railroad. It used horse-drawn, sail power, steam power, electric power, petrol and diesel as sources of power.
This is the only picture I could find on the Internet:
It was first used to carry limestone from the quarries. From the picture above, I would surmise that it quickly turned to carrying passengers. Did you notice that there is only one horse pulling it? Heavy loads move a lot easier on rails than they would over land and rail tracks were usually laid as level as possible, going around hills instead of over them. Compare the above picture to all you have ever seen of the western stagecoaches used in the U.S. way back when. They had at least four horses pulling them. It is so much easier to move something on rails than over ground. Now, you all have a great day today, you hear?