Aerial view of Philadelphia, Pennsylvania, focusing on Walt Whitman Bridge, a single-level suspension bridge spanning the Delaware River from Philadelphia to Gloucester City in Camden County, New Jersey. Named after the poet Walt Whitman, who resided in nearby Camden toward the end of his life, the Walt Whitman Bridge is one of the larger bridges on the East Coast of the United States. Construction on the bridge began in 1953 and opened to traffic four years later. Photo by Carol Highsmith, 2019.