One Liberty Place, Philladelphia. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/421833/free-photo-image-philadelphia-city-architectureFree Image from public domain licensePhiladelphia, United States of America. Free public domain CC0 photo. https://www.rawpixel.com/image/6042100/photo-image-desktop-wallpaper-public-domain-peopleFree Image from public domain licenseSkylline of Philadelphia. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… https://www.rawpixel.com/image/421926/free-photo-image-philadelphia-city-architectureFree Image from public domain licenseOne Liberty Place, Philladelphia. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/421834/free-photo-image-architecture-america-public-domainFree Image from public domain licenseView from the Duquesne Incline station, atop Mount Washington, of downtown Pittsburgh, Pennsylvania. Original image from… https://www.rawpixel.com/image/3092102/free-photo-image-pittsburgh-aerial-view-americaFree Image from public domain licensePhiladelphia skyline. Original image from Carol M. Highsmith’s America, Library of Congress collection. Digitally… https://www.rawpixel.com/image/433999/free-photo-image-park-city-philadelphia-skylineFree Image from public domain licenseSchuylkill River, Philadelphia. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/421840/free-photo-image-skyline-philadelphiaFree Image from public domain licensePittsburgh, Pennslyvania skyline including PPG Place with the spiked roofline to the far left designed by famous architect… https://www.rawpixel.com/image/421749/free-photo-image-carol-highsmith-city-architecturalFree Image from public domain licenseOne Liberty Place, Philladelphia. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/421839/free-photo-image-philadelphia-building-architectureFree Image from public domain licensePhiladelphia, Pennsylvania. Downtown buildings near Walnut and Broad Streets, looking east. Sourced from the Library of… https://www.rawpixel.com/image/12307726/image-sky-public-domain-architectureFree Image from public domain licenseSkyline of Pittsburgh, Pennsylvania. Original image from Carol M. Highsmith’s America, Library of Congress collection.… https://www.rawpixel.com/image/433798/free-photo-image-carol-highsmith-famous-city-skylines-finance-districtFree Image from public domain license[Untitled photo, possibly related to: Slums, Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12315225/image-person-sky-technologyFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12333826/image-sky-road-public-domainFree Image from public domain licensePittsburgh waterfront. Monongahela and Allegheny Rivers, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12322750/image-sky-public-domain-natureFree Image from public domain licensePhiladelphia, Pennsylvania. Downtown buildings looking east over Walnut and 15th Streets. Sourced from the Library of… https://www.rawpixel.com/image/12339599/image-sky-public-domain-officeFree Image from public domain licensePittsburgh, Pennsylvania in the evening. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278627/photo-image-sky-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Jones Laughlin steel company. Pittsburgh, Pennsylvania]. Sourced from the Library of… https://www.rawpixel.com/image/12287299/photo-image-sky-smoke-lightFree Image from public domain licenseCarloads of fruits and vegetables at terminal. Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12286094/photo-image-cloud-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12283216/photo-image-sky-smoke-public-domainFree Image from public domain licenseLooking north. Monongahela River, Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273725/photo-image-sky-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284356/photo-image-sky-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284472/photo-image-cloud-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12283476/photo-image-cloud-sky-smokeFree Image from public domain licenseView of city of Pittsburgh, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272448/photo-image-sky-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: Carloads of fruits and vegetables at terminal. Pittsburgh, Pennsylvania]. Sourced from… https://www.rawpixel.com/image/12287300/photo-image-cloud-person-skyFree Image from public domain licensePittsburgh. View of the city from Homestead. Sourced from the Library of Congress. https://www.rawpixel.com/image/12272449/photo-image-sky-smoke-public-domainFree Image from public domain license