Visitors may wonder how Niagara Falls came to be the site of magnificent bridges, a famous cereal factory, and a picturesque New York state reservation, designed by Frederick Law Olmsted. Although many have always admired the natural splendor of the Falls, William Irwin explains that it was not until the mid-1800s that Niagara truly captured the American imagination. With the coming of John Roebling's railway suspension bridge in 1855 came the...