Ohio is located in the Midwestern United States, bordered by Kentucky, West Virginia, Indiana, and Minnesota. It has several major cities and regions defined by area codes. The climate is characterized by cool springs, comfortable falls, and cold, snowy winters. Important landmarks include the Rock and Roll Hall of Fame and Pro Football Hall of Fame. Transportation relies heavily on the Ohio River and exports include transportation equipment, fabricated metals, machinery, and food products like corn, beans, and dairy. People have adapted to the winter climate by wearing warm coats and have modified the land through infrastructure projects like bridges.