A pattern with gray and white triangles on a building facade in Madrid. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3304688/free-photo-image-geometry-texture-abstractFree Image from public domain licenseThe edge of a building facade with glass plates on it in Madrid. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282433/free-photo-image-office-building-backgroundFree Image from public domain licenseFree spiral stairways from a low angle image, public domain architecture CC0 photo. https://www.rawpixel.com/image/5917686/image-light-public-domain-shadowsFree Image from public domain licenseA triangle shaped wooden background texture pattern at the Shanghai Performing Arts Center. 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Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3282311/free-photo-image-office-building-view-cityFree Image from public domain licenseA shot of a geometric shadow on architecture in Dubai. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3300597/free-photo-image-dubai-city-photos-architecture-blindFree Image from public domain licenseWooden geometric pattern Shanghai. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3296441/free-photo-image-wood-geometric-texture-pngFree Image from public domain licenseImpressive view down a stairwell with spiral marble stairs. 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