But if he were to visit Wales today, he would still recognise places such as Talygarn, Cardiff docks, Porthcawl Pavilion and some of the listed relics of the coal industry.
Mae Cadw’n gofalu am 132 o safleoedd hanesyddol ledled Cymru gan gynnwys cestyll, abatai, gweithfeydd haearn, bryngaerau a siambrau claddu.