Readers are given insight into twenty major historic and natural sites, including the War of 1812 U.S. Brig Niagara and giant locomotives at the Steamtown National Historic Site. The author and photographer portray many of their own discoveries along the way in towns and in the countryside. The book also features photographs and descriptions of three spectacular bridges -- the Kinzua Bridge, the Tunkhannock Viaduct, and the Roebling Bridge, which once carried canal water.