A farm structure is a building or other structure used for agricultural purposes. Common farm structures include a SILO, which is a tall cylindrical structure used to store grain; a COOP, which is a small shelter for chickens or other poultry; a STY, which is a small enclosure for pigs; a BARN, which is a large building used to store hay, grain, and livestock; a corn crib, which is an open-sided structure used to store corn; a PIGPEN, which is an enclosure for pigs; a PEN, which is an enclosure for sheep or other animals; a ROOST, which is a perch for chickens; an icehouse, which is a structure used to store ice; and a tool shed, which is a small structure used to store tools and equipment.