A wagon is a four-wheeled vehicle designed for transporting goods or people. Traditionally pulled by animals like horses or oxen, wagons have been used for centuries in agriculture and trade. They come in various designs, including flatbed wagons for carrying heavy loads and covered wagons for long journeys. Today, wagons are often made from materials like wood or metal and can be found in different sizes. They are commonly used for recreational purposes, such as children's wagons for play or garden wagons for transporting plants and tools. Some modern versions are even motorized for easier transport.