Abstract: A racetrack for toy vehicles is constructed from a racetrack set including closed track sections that reversibly snap together end-to-end. The inner surface of the closed track sections serves as the track for the toy vehicles. The closed track sections preferably include different shapes to provide building options to the user. In some embodiments, the closed track sections include fasteners, or loops for attaching fasteners, extending from the outer surfaces of the track sections to fasten the closed track sections to stationary objects for stability. In some embodiments, the racetrack set includes supports to elevate portions of the racetrack above a surface. In some embodiments, the racetrack set includes lighting reversibly attachable to the closed track sections or permanently attached to the walls of closed track sections.