Explore All Endangered Places

Use this tool to search for sites included on America's 11 Most Endangered Historic Places list in the last two decades. Since 1988, more than 250 sites have been recognized as threatened. You can search by state, year, or even find out whether a site has been saved or still needs your support.

Year Listed
Related State


 National Landscape Conservation System, Wyoming, 2005

 National Soldiers Home Historic District, Wisconsin, 2011

 Nine Mile Canyon, Utah, 2004

 Oak Flat, Arizona, 2015

 Ocmulgee Old Fields Traditional Cultural Property, Georgia, 2003

 Okeechobee Battlefield, Florida, 2000

 Old Deerfield Historic District, Massachusetts, 1988, 1989

 Old Kaskaskia Village, Illinois, 1988, 1989

 Old U.S. Mint, California, 2015

 Oldest Surviving McDonald's, California, 1994

 Ossabaw Island, Georgia, 1995

 Over-the-Rhine Neighborhood, Ohio, 2006

 Palladium Building, Missouri, 2014

 Peace Bridge Neighborhood, New York, 2008

 Penn School, South Carolina, 1990, 1991

 Petoskey, Michigan, 1996

 Philip Simmons' Workshop and Home, South Carolina, 2007

 Pillsbury "A" Mill Complex, Minnesota, 2011

 Pinon Canyon, Colorado, 2007

 Pompey's Pillar, Montana, 2002

 Prairie Churches of North Dakota, North Dakota, 2001

 Prehistoric Serpent Mound, Ohio, 1993

 Prentice Women's Hospital, Illinois, 2011

 President Lincoln's Cottage, District of Columbia, 2000

 Princeton Battlefield, New Jersey, 2012


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