Rhondda Cynon Taf is a county borough in South Wales. It has 89 scheduled monuments, seven of which cross or are on a border with a neighbouring authority. Of the 54 prehistoric sites, 40 are burial sites, with four hillforts and ten domestic and hut circle sites. There are three Roman sites, all military in purpose, and a variety of medieval mottes, churches, houses and a bridge. The 17 post-medieval sites are various forms of industrial and transport-related sites.(Main article: Lists of scheduled monuments in Wales)