Galata Tower, Istanbul, Turkey. Original public domain image from Travel Coffee Book https://www.rawpixel.com/image/8809302/photo-image-travel-black-and-white-istanbulFree Image from public domain licenseThe Galata Tower, Istanbul, Turkey. Photograph by Guillaume Berggren, ca. 1880. https://www.rawpixel.com/image/14018808/the-galata-tower-istanbul-turkey-photograph-guillaume-berggren-ca-1880Free Image from public domain license