Grade II* listed buildings in Torfaen
In the United Kingdom, the term listed building refers to a building or other structure officially designated as being of special architectural, historical, or cultural significance; Grade II* structures are those considered to be "particularly important buildings of more than special interest". Listing was begun by a provision in the Town and Country Planning Act 1947.
Source: Wikipedia — Grade II* listed buildings in Torfaen (CC BY-SA 4.0)