View across the Merrimack River of one of what were once dozens of mammoth textile mills on the edge of Manchester, New Hampshire. Many are now converting into loft and condominium apartment buildings. In the late-19th and early-20th centuries, Manchester would become home to the largest cotton mill in the world — Mill No. 11, containing 4,000 looms. Hundreds of other industrial products, from rifles to locomotives, were also produced there. Photo by Carol Highsmith.