Hidden City Philadelphia, a blog dedicated to inspiring curiosity about the city and its "remarkable but lesser known places, and to give their time, resources and ideas to realize new futures for the places and communities where we work," has featured a photo essay on the SS United States.The photographer, Chandra Lampreich, first saw the ship during a family trip, and the image stayed with her ever since. As she mentions in her title, the United States is one-of-a-kind, and her heritage is irreplaceable.The story, and accompanying photo essay, can be viewed HERE.