I know them as end cars of a freight train and a welcome sight after about hundred box cars go by; they look like a cabin with windows and back porch steps. The caboose was much romanticized in movies but it’s just that they had a lot of duties in way of safety. The old adage bringing up the rear becomes very important in this way of freight travel. They actually don’t use them anymore. It's said that they’re only a part of freight trains, but I have seen them at the end of passenger trains on occasions. I hardly know anything about them either, except that they were my favorite part of watching a train. You could always depend on a conductor standing there at the window, ready to give you a wave as it went by.