A train set is a collection of miniature trains, tracks, and accessories designed for play or display. These sets can vary in size and complexity, ranging from simple loops of track to elaborate layouts with multiple trains, buildings, and landscapes. Train sets are popular among children and hobbyists, providing an engaging way to learn about trains and engineering. Many train sets are modeled after real-life trains, such as those operated by Amtrak or Union Pacific. They can be powered by electricity or batteries, and some even feature remote controls. Train sets encourage creativity and fine motor skills as users build and customize their layouts.