Cultural heritage studies examines, in a multidisciplinary manner, all preserved traces of the past that a certain community or a group of people considers to be valuable or to require protection. Cultural heritage includes anything consequential to the present. Therefore, research is not focused on the past, per se, as in archaeology, history and art history. By contrast, studies of cultural heritage reveal something about us, as modern people. Central concepts of the field include authenticity, memory, protection and tourism.