European dolmens, especially hunebed and dyss burials, often provide examples of the use of kerbs in megalithic architecture but they were also added to other kinds of chamber tomb. Kerbs may be built in a dry stone wall method employing small blocks or more commonly using larger stones set in the ground. When larger stones are employed, peristalith is the term more properly used. Often, when the earth barrow has been weathered away, the surviving kerb can give the impression of being a stone circle although these monuments date from considerably later.