Region
New York (State)
13
Virginia
11
Massachusetts
10
United States
7
California
6
Fredericksburg and Spotsylvania National Military Park
4
Fredericksburg and Spotsylvania National Military Park (Va.)
4
Hyde Park (Dutchess County)
4
Maryland
4
Pennsylvania
4
Vanderbilt Mansion National Historic Site (Hyde Park, Dutchess County, N.Y.)
4
Golden Gate National Recreation Area (Calif.)
3
Oyster Bay
3
Rhode Island
3
Sagamore Hill National Historic Site (Oyster Bay, N.Y.)
3
Antietam National Battlefield (Md.)
2
Battery Weed (N.Y.)
2
Blowmedown Farm
2
Blowmedown Farm (N.H.)
2
Brookhaven (N.Y. : Town)
2
Brookhaven (Town)
2
Cambridge
2
Camp Hoover
2
Camp Hoover (Va.)
2
China
2
Colorado
2
Cornish (N.H. : Town)
2
Cornish (Town)
2
Europe
2
Fire Island National Seashore
2
Fort Mason (San Francisco, Calif.)
2
Four Corners Region
2
Fredericksburg
2
Gateway National Recreation Area (N.J. and N.Y.)
2
Gettysburg National Military Park
2
Gettysburg National Military Park (Pa.)
2
Harpers Ferry
2
Harpers Ferry National Historical Park
2
Johnstown (Cambria County)
2
Johnstown (Cambria County, Pa.)
2
Johnstown Flood National Memorial
2
Johnstown Flood National Memorial (Pa.)
2
Longfellow House-Washington's Headquarters National Historic Site (Cambridge, Mass.)
2
Martin Van Buren National Historic Site
2
Martin Van Buren National Historic Site (N.Y.)
2
Minute Man National Historical Park
2
Minute Man National Historical Park (Mass.)
2
New Hampshire
2
New York
2
Orange County (Va.)
2
more ...