Individually named historic houses, mansions, villas and estates recorded under this atlas's Cultural and Institutional Buildings subcategory even though, on their own entity-description, none of them is chiefly significant as a museum, library, theater, school or other institution the way this subcategory's other groups are: most are simply a named historic residence, sometimes now a private home again, sometimes a working farm or public park, that this atlas filed here rather than under Residential Buildings or Palaces and Aristocratic Residences. Belongs here: any historic house, mansion, villa or estate in this subcategory whose own description does not name a current museum, library, school, theater, concert venue, arts center or exhibition-pavilion use. Does not belong here: a comparable historic house that this atlas's own description states now operates as a museum, school or library, each placed on the specific group that use matches instead, since that is the more useful and more accurate placement when it applies.