A cheeseburger with onions is seen at a snack trailer along the A49 near Tittensor, central England August 20, 2013. Snack vans can be found in lay-bys along highways across Britain, offering motorists and other passers-by a cheap, independent alternative to conventional service stations. They can take the form of trailers, little vans, caravans or even converted buses, which tempt customers with hearty food including traditional "Full English" breakfasts, burgers and cups of tea. [Photo/Agencies]