Pennsylvania ranks as the sixth wealthiest state in the country with the manufacturing centers of Pittsburgh and Philadelphia. Many Fortune 500 companies are headquartered in Pennsylvania including AmerisourceBergen, Sunoco, Comcast, Rite Aid, Cigna, US Steel, Aramark, H.J. Heinz, Unisys, Hershey, Bon-Ton Stores, Dick’s Sporting Goods and Pep Boys. Agriculture is also an important factor in Pennsylvania’s economy with products including mushrooms, Christmas trees, corn, horses, poultry, hogs, cattle, dairy products and nursery stock. Tourism is a big factor in Pennsylvania’s economy due to the historic sites around the Philadelphia area.