New York, NY, September 28, 2001 -- Debris on surrounding roofs at the site of the World Trade Center. Photo by Andrea… https://www.rawpixel.com/image/8718132/photo-image-public-domain-person-worldFree Image from public domain licenseCars at Pullin' For Pink Fundraiser, September 28, 2019, Greenville, North Carolina, USA. Original public domain image from… https://www.rawpixel.com/image/9658196/image-public-domain-photo-carFree Image from public domain licenseCars at Pullin' For Pink Fundraiser, September 28, 2019, Greenville, North Carolina, USA. Original public domain image from… https://www.rawpixel.com/image/9658212/image-person-public-domain-photoFree Image from public domain licenseAn oak tree.Part of the garden at Wörlitz near Dessau by Johan Christian Claussen Dahl https://www.rawpixel.com/image/8924308/image-paper-plant-artFree Image from public domain licenseNational Park Superintendent Tammy Duchesne visit to New Zealand, September 21-28, 2016. Original public domain image from… https://www.rawpixel.com/image/8753924/photo-image-public-domain-bird-doveFree Image from public domain licenseThe Hospital with architectural details, Coventry. Photolithograph by W.H. Bidlake, 1884. https://www.rawpixel.com/image/13962116/image-cartoon-art-hospitalsFree Image from public domain licenseNational Park Superintendent Tammy Duchesne visit to New Zealand, September 21-28, 2016.Original public domain image from… https://www.rawpixel.com/image/8753928/photo-image-flower-plant-public-domainFree Image from public domain licenseNational Park Superintendent Tammy Duchesne visit to New Zealand, September 21-28, 2016.Original public domain image from… https://www.rawpixel.com/image/8753848/photo-image-public-domain-bird-doveFree Image from public domain licenseSt. John's Schools, Liverpool, Merseyside. Wood engraving by Laing, 1850, after B. Sly after Hay. https://www.rawpixel.com/image/13973012/image-cartoon-church-artFree Image from public domain licenseNational Park Superintendent Tammy Duchesne visit to New Zealand, September 21-28, 2016. Original public domain image from… https://www.rawpixel.com/image/8753862/photo-image-plant-public-domain-natureFree Image from public domain licenseFrankfurt am Main: the town hall (Rathaus, Römer) with the shield of the city, the railway and the river Main. Etching by B.… https://www.rawpixel.com/image/13975931/image-paper-cartoon-artFree Image from public domain licensePass of Killiecrankie, from the Bridge. by George Washington Wilson https://www.rawpixel.com/image/14308475/pass-killiecrankie-from-the-bridge-george-washington-wilsonFree Image from public domain licenseNational Park Superintendent Tammy Duchesne visit to New Zealand, September 21-28, 2016.Original public domain image from… https://www.rawpixel.com/image/8753918/photo-image-tree-public-domain-personFree Image from public domain license