Model of the Spiral Staircase of a Lighthouse (1834) by Petrus van der Loo and L Valk https://www.rawpixel.com/image/13750747/photo-image-wood-public-domain-gray-backgroundFree Image from public domain licenseThe staircase at the Vatican Museum. I am far from the first to upload a picture from this location, but I think one more is… https://www.rawpixel.com/image/3370927/free-photo-image-banister-cc0-creative-commonsFree Image from public domain licenseRear stairs of apartment house, L Street, N.W., Washington, D.C. by Russell Lee https://www.rawpixel.com/image/12168206/image-art-vintage-public-domainFree Image from public domain licenseTrap Druckeruitbouw en vitrinekasten met Chinees porselein (c. 1910 - c. 1960) by Rijksmuseum Afdeling Beeld https://www.rawpixel.com/image/13754324/photo-image-person-art-patternFree Image from public domain licenseLight blue architecture illuminated. AI generated Image by rawpixel. https://www.rawpixel.com/image/11990008/image-art-pattern-lightView licenseRotterdams trappenhuis in Druckeruitbouw tijdens renovatie (1995) by Rijksmuseum Afdeling Beeld https://www.rawpixel.com/image/13752384/photo-image-public-domain-house-archFree Image from public domain licenseHousing in Ambridge, Pennsylvania, home of the American Bridge Company. Sourced from the Library of Congress. https://www.rawpixel.com/image/12314251/image-person-public-domain-houseFree Image from public domain licenseTechnische tekeningen van trappen (1739) by Jan Schenk, Tieleman van der Horst and Pieter Schenk II https://www.rawpixel.com/image/13785677/image-paper-cartoon-artFree Image from public domain licenseThe tiny SNAP atomic generator is fastened to the base of the Navy's Navigational satellite for vibration tests at Johns… https://www.rawpixel.com/image/3322583/free-photo-image-aec-banister-cc0Free Image from public domain licenseArchitecture abstract lighting backgrounds. AI generated Image by rawpixel. https://www.rawpixel.com/image/12053156/photo-image-house-line-circleView licenseChâteau de Chambord: Escalier à jour, cour d'Orléans by Médéric Mieusement https://www.rawpixel.com/image/14315109/chateau-chambord-escalier-jour-cour-dorleans-mederic-mieusementFree Image from public domain license[Untitled photo, possibly related to: Boeing aircraft plant, Seattle, Washington. Production of B-17F (Flying Fortress)… https://www.rawpixel.com/image/12298018/photo-image-plant-person-patternFree Image from public domain licenseStaircase on a blue building https://www.rawpixel.com/image/534726/free-photo-image-path-architectural-blueView licenseType of bedroom ventilating flaps. Chandler, Arizona, project. Sourced from the Library of Congress. https://www.rawpixel.com/image/12250905/image-sky-house-windowFree Image from public domain licenseBethlehem-Fairfield shipyards, Baltimore, Maryland. Shaft alley stockpile. Sourced from the Library of Congress. https://www.rawpixel.com/image/12292821/photo-image-light-public-domain-blackFree Image from public domain licenseHudson River ferry playing between Athens and Hudson, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288370/photo-image-sky-public-domain-houseFree Image from public domain licenseWashington, D.C. Mail chute at the main post office. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269296/photo-image-public-domain-factory-houseFree Image from public domain license[Untitled photo, possibly related to: Boeing aircraft plant, Seattle, Washington. Production of B-17F (Flying Fortress)… https://www.rawpixel.com/image/12297754/photo-image-plant-person-patternFree Image from public domain licenseWashington, D.C. Balcony of house being wrecked on Independence Avenue. Sourced from the Library of Congress. https://www.rawpixel.com/image/12269355/photo-image-plant-tree-public-domainFree Image from public domain licenseWashington, D.C. Interior of wrecked houses on Independence Avenue. Sourced from the Library of Congress. https://www.rawpixel.com/image/12268054/photo-image-person-public-domain-houseFree Image from public domain licenseDesign of resident's storey and stairway https://www.rawpixel.com/image/10940/premium-photo-image-building-construction-upstairs-achievementView licenseA searchlight next to the pilot house on the towboat Ernest T. Weir going down the Ohio River to Cincinnati. Sourced from… https://www.rawpixel.com/image/12295334/photo-image-person-public-domain-houseFree Image from public domain licenseBack steps of hotel. Minot, North Dakota. Sourced from the Library of Congress. https://www.rawpixel.com/image/12261854/photo-image-shadow-pattern-woodFree Image from public domain licenseLooking down to the main deck on the Hudson River ferry, New York. Sourced from the Library of Congress. https://www.rawpixel.com/image/12289591/photo-image-public-domain-house-architectureFree Image from public domain license