The California State Historical Landmarks program is managed by the California Office of Historic Preservation. These are buildings,...

National Historic Landmarks (NHLs) represent the most elite selection of historic places in the United States. These are buildings, sites, s

The National Register of Historic Places (NRHP or "the Register") is the official list of properties in the United States worthy o

New York City Landmarks are places within the Five Boroughs (Manhattan, Brooklyn, Queens, the Bronx, and Staten Island) which are...