A train set is a collection of miniature trains, tracks, and accessories that allows people to create their own railway systems. These sets can vary in size and complexity, from simple loops of track to elaborate layouts with multiple trains, buildings, and landscapes. Many enthusiasts enjoy building and customizing their train sets, making them a fun hobby for both children and adults. Train sets often include various components like locomotives, freight cars, and passenger cars. Some sets are designed for electric operation, while others are manual. Collecting and displaying train sets can also be a way to connect with the history of railroads and the joy of model building.