East Martello Tower. Old Spanish fort, Key West, Florida. Sourced from the Library of Congress. https://www.rawpixel.com/image/12273484/photo-image-plant-sky-public-domainFree Image from public domain licenseOfficers of the 57th Fighter Group visiting Roman ruins in Tunisia. Sourced from the Library of Congress. https://www.rawpixel.com/image/12295959/photo-image-person-sky-public-domainFree Image from public domain licenseWashington, D.C. Loading debris from wrecked buildings on Independence Avenue. Sourced from the Library of Congress. https://www.rawpixel.com/image/12268116/photo-image-person-sky-public-domainFree Image from public domain license[Untitled photo, possibly related to: The dock at Little Creek, Virginia, the "Gateway to the South." The Norfolk end of the… https://www.rawpixel.com/image/12264450/photo-image-sky-public-domain-natureFree Image from public domain license[Untitled photo, possibly related to: American troops of the 57th Fighter Group sightseeing among Roman ruins in Tunisia].… https://www.rawpixel.com/image/12295678/photo-image-person-sky-mountainFree Image from public domain licenseFort Loudon [i.e., Loudoun] Dam, Tennessee. Tennessee Valley Authority (TVA). Coffer Dam construction. Sourced from the… https://www.rawpixel.com/image/12340413/image-person-sky-manFree Image from public domain licensePalermo, Sicily. An American soldier viewing the ancient grandeur of Monreale Cathedral. Sourced from the Library of… https://www.rawpixel.com/image/12296535/photo-image-shadow-person-public-domainFree Image from public domain licenseOne of the buildings on the campus of the State Agricultural College at Logan, Utah by Russell Lee https://www.rawpixel.com/image/12148950/image-plant-art-skyFree Image from public domain licenseFrederiksted, Saint Croix Island, Virgin Islands. Church. Sourced from the Library of Congress. https://www.rawpixel.com/image/12281395/photo-image-plant-tree-public-domainFree Image from public domain license[Untitled photo, possibly related to: San Sebastian, Puerto Rico. The plaza and cathedral]. Sourced from the Library of… https://www.rawpixel.com/image/12280709/photo-image-cloud-plant-personFree Image from public domain licenseRuins of buildings in ghost mining town. Rhyolite, Nevada. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269906/photo-image-sky-public-domain-wallFree Image from public domain license[Untitled photo, possibly related to: Swimming pool built by children of town, Ambridge, Pennsylvania]. Sourced from the… https://www.rawpixel.com/image/12253470/photo-image-person-public-domain-childrenFree Image from public domain licenseOld Spanish mission church. Taos Pueblo, New Mexico. Sourced from the Library of Congress. https://www.rawpixel.com/image/12265669/photo-image-person-sky-public-domainFree Image from public domain licenseNaples Casino during flood, Sebago Lake, Maine. Sourced from the Library of Congress. https://www.rawpixel.com/image/12258080/photo-image-plant-sky-treeFree Image from public domain license