Traffic On Market Street, Philadelphia's Main East-West Artery, Looking West, August 1973. Photographer: Swanson, Dick.… https://www.rawpixel.com/image/8799466/photo-image-public-domain-person-natureFree Image from public domain licenseAerial view of Philadelphia, Pennsylvania, with a focus on the skyscrapers of what locals call “Center City” in… https://www.rawpixel.com/image/3092091/free-photo-image-aerial-view-city-americaFree Image from public domain licenseThe city skyline at dusk in Philadelphia, Pennsylvania. Original image from Carol M. Highsmith’s America, Library of… https://www.rawpixel.com/image/3092069/free-photo-image-dark-aerial-view-americaFree Image from public domain licenseAerial view of Philadelphia. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/433998/free-photo-image-carol-highsmith-penn-state-architectureFree Image from public domain licenseFairmont Park, Philadelphia, Pennsylvania: an aerial view showing the Schuylkill River. Photograph, ca. 1880. https://www.rawpixel.com/image/14016130/photo-image-plant-tree-skyFree Image from public domain license