Macao, China: the ruins of St Paul's church. Photograph by John Thomson, 1870. https://www.rawpixel.com/image/13992916/macao-china-the-ruins-pauls-church-photograph-john-thomson-1870Free Image from public domain licenseMacao Island: Macao Inner Harbour and adjacent Barra Fort, from the Island of Patera. Photograph by W.P. Floyd, ca. 1873. https://www.rawpixel.com/image/13977254/photo-image-dog-person-skyFree Image from public domain licenseMacao, China. Photograph, 1981, from a negative by John Thomson, 1870. https://www.rawpixel.com/image/14001199/macao-china-photograph-1981-from-negative-john-thomson-1870Free Image from public domain licenseMacao Island: view across Macao City, looking towards the inner harbour. Photograph by W.P. Floyd, ca. 1873. https://www.rawpixel.com/image/14012951/photo-image-sky-mountain-public-domainFree Image from public domain license