Rural structures are an important part of the agricultural landscape. A BARN is a large building used for storing hay, grain, and other agricultural products. It is typically made of wood or metal and has a large door for easy access. A SILO is a tall cylindrical structure used to store grain, usually made of concrete or metal. A STILE is a small structure used to help people cross over a fence or wall, usually made of wood or metal. All three of these rural structures are essential for the efficient operation of a farm.