Original public domain image from Flickr https://www.rawpixel.com/image/4026536/original-public-domain-image-from-flickrView licenseSallustian obelisque, as seen from via Sistina, Rome, Italy. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3340940/free-photo-image-architecture-automobile-buildingFree Image from public domain licenseObelisk of Saint Peter Square, Vatican, Rome. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3340952/free-photo-image-architecture-bicycle-bikeFree Image from public domain licenseGlasgow, August 2015: City HallThis is Glasgow City Hall set in a beautiful square and a justifiable source of great civic… https://www.rawpixel.com/image/5975738/photo-image-public-domain-person-summerFree Image from public domain licenseThe skyline of a city with urban skyscrapers.. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299782/free-photo-image-apartment-building-architecture-asphaltFree Image from public domain licenseA towering skyscraper with a long spire among several high-rises. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303011/free-photo-image-architecture-building-cc0Free Image from public domain licenseInfared photo of Cherry blossoms near the Tidal Basin, the U.S. Department of Agriculture (USDA) Whitten Building, and… https://www.rawpixel.com/image/3261469/free-photo-image-architecture-building-cityFree Image from public domain licenseL'horloge de la gare du Havre. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3371109/free-photo-image-architecture-automobile-bell-towerFree Image from public domain licenseA tall twisting white structure against a blue sky. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3289574/free-photo-image-aircraft-airliner-airplaneFree Image from public domain licenseObelisk, brought to Rome by Constantine... by Stabilimento Fotografico https://www.rawpixel.com/image/14299870/obelisk-brought-rome-constantine-stabilimento-fotograficoFree Image from public domain licenseIn celebration of landing on the moon 50 years ago, the Smithsonian Institution presented a 17-minute show of the Apollo 11… https://www.rawpixel.com/image/3261849/free-photo-image-architecture-building-cityFree Image from public domain licenseVirginia Earthquake today, we're sharing a shot of some of the damage to the Washington National Cathedral in DC that… https://www.rawpixel.com/image/4043766/photo-image-nature-landscape-buildingFree Image from public domain licenseIn celebration of landing on the moon 50 years ago, the Smithsonian Institution presented a 17-minute show of the Apollo 11… https://www.rawpixel.com/image/3260950/free-photo-image-airplane-advertisement-aircraftFree Image from public domain licenseWhite concrete spires against a blue sky. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299296/free-photo-image-building-architecture-beaconFree Image from public domain licenseThe World Factbook - AlbaniaSkanderbeg Square in the center of Tirana as viewed from the city's clock tower. Original public… https://www.rawpixel.com/image/4051603/photo-image-person-nature-landscapeFree Image from public domain licenseTrees covered with white blossom under a towering obelisk. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296260/free-photo-image-architecture-blossom-buildingFree Image from public domain licenseGezicht op de Congreskolom in Brussel (1909) by anonymous and H C White Co https://www.rawpixel.com/image/13757898/gezicht-congreskolom-brussel-1909-anonymous-and-whiteFree Image from public domain licenseNorth Greenwich Station, London, United Kingdom. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3298483/free-photo-image-animal-architecture-birdFree Image from public domain licenseDe Naald van Waterloo, monument ter ere van de Prins van Oranje, te Soestdijk, 1815 (1815) by anonymous https://www.rawpixel.com/image/13785592/image-paper-person-artFree Image from public domain licenseStatue de la Vierge Marie et de la commune de Saint-Béat by Jules Andrieu https://www.rawpixel.com/image/14284767/statue-vierge-marie-commune-saint-beat-jules-andrieuFree Image from public domain licenseShanghai, Kiangsu province, China. Photograph, 1981, from a negative by John Thomson, 1871. https://www.rawpixel.com/image/13995268/photo-image-person-art-skyFree Image from public domain licenseVue Instantanee de Paris. Place de la Concorde. by Hippolyte Jouvin https://www.rawpixel.com/image/14305199/vue-instantanee-paris-place-concorde-hippolyte-jouvinFree Image from public domain licenseL'Eglise de Sainte Marie del Popolo et la Porta del Popolo by James Anderson https://www.rawpixel.com/image/14324238/leglise-sainte-marie-del-popolo-porta-del-popolo-james-andersonFree Image from public domain licenseÉglise Notre Dame De Laeken Bruxelles Side View. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3371588/free-photo-image-architecture-building-campusFree Image from public domain licenseLa Piazza del Popolo, vue en entrant dans la ville by James Anderson https://www.rawpixel.com/image/14326108/piazza-del-popolo-vue-entrant-dans-ville-james-andersonFree Image from public domain licenseClocks: a large carved stone gnomon, dated 1714, on Lord Reay's estate at Tongue. Lithograph after a drawing by C. G. Loch. https://www.rawpixel.com/image/13977071/image-art-pattern-animalFree Image from public domain licenseLa Basilique de Saint Pierre et le Vatican, vu du Monte Pincio by James Anderson https://www.rawpixel.com/image/14326282/image-lions-person-public-domainFree Image from public domain licenseSection of Tholus [sic] Design 1859, Dome of U.S. Capitol Pen, Ink and watercolor. Original public domain image from Flickr https://www.rawpixel.com/image/4051650/illustration-image-art-painting-buildingFree Image from public domain licenseEgyptische obelisk in de tuin van de Villa Medici te Rome (1651) by Giovanni Maggi, Bartolomeo Rossi, Giovanni Giacomo de… https://www.rawpixel.com/image/13766041/image-paper-person-artFree Image from public domain licenseThe White House illuminated pink in honor of National Breast Cancer Awareness Month | October 2, 2017 (Official White House… https://www.rawpixel.com/image/4049190/photo-image-house-city-buildingFree Image from public domain licensePlace Vendôme en de Colonne Vendôme te Parijs (1887 - 1900) by X phot https://www.rawpixel.com/image/13734133/place-vendome-colonne-vendome-parijs-1887-1900-photFree Image from public domain licenseToronto control tower in front of clouds. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3303900/free-photo-image-column-architecture-buildingFree Image from public domain licenseFrom the Pincio by Count Jean François Charles André Flachéron https://www.rawpixel.com/image/14274409/from-the-pincio-count-jean-francois-charles-andre-flacheronFree Image from public domain licenseRed purple sky, view from the plane. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299059/free-photo-image-aircraft-engine-city-aerial-viewFree Image from public domain license