• A historic building is a subcategory of historic property as defined by the National Register of Historic Places.

  • There are currently over 2,600 National Historic Landmarks in the United States.
  • Historic structures may include bridges, mines, canals, ships, and highways, but the official designation distinguishes the structure from human habitation.
  • Historic buildings may be listed as a National Park Service Historic Property, but must meet at least one of the four key National Register criteria.
  • The purpose of these criteria is to ensure that structures of particular cultural and historical significance are preserved.