Built Heritage are the remains of buildings or other historical structures visible above ground-level, which can be either intact or ruined.
The distinction between archaeological and built heritage is gradual and depends on monument protection policies and government structure. For instance, in the United Kingdom both archaeological and built heritage sites are managed jointly by the same organisations (e.g. English Heritage, Historic Scotland, National Trust), whereas in German federal states, the archaeological and built heritage is frequently managed by two different authorities.
Photo:Kallo lighthouse in Pori, Finland. Copyright: S. Tikkanen.