The Agricultural History Center is a nonprofit organization dedicated to enhancing people s education, understanding and appreciation of the rich heritage of agriculture and transportation. The Heidrick Ag History Center introduces visitors to the marvels of agriculture, and commercial trucking through 130,000 square feet of interactive, one-of-a-kind exhibits featuring the latest in museum and attraction technologies. The cornerstones of these exhibits are the Fred C. Heidrick Antique Ag Collection, the world s largest and most unique collection of one-of-a-kind antique agricultural equipment and the Hays Antique Truck Museum, also recognized as the largest of its kind in the world..