Region
United States
90
Washington (D.C.)
50
Colorado
45
New York (State)
29
California
18
Denver
16
Massachusetts
14
North Carolina
14
Virginia
13
Italy
11
Alaska
10
Denver (Colo.)
10
New York
9
Connecticut
8
Oyster Bay
8
Sagamore Hill National Historic Site (Oyster Bay, N.Y.)
8
Maryland
7
Rome
7
Coltsville (Hartford, Conn.)
6
Hartford
6
Kentucky
6
New Mexico
6
Ohio
6
Abraham Lincoln Birthplace National Historical Park (Ky.)
5
Cape Lookout National Seashore
5
Florida
5
Hodgenville
5
Hyde Park (Dutchess County)
5
New Jersey
5
Rome (Italy)
5
England
4
Golden Gate National Recreation Area
4
Golden Gate National Recreation Area (Calif.)
4
Pennsylvania
4
Santa Fe
4
Vanderbilt Mansion National Historic Site (Hyde Park, Dutchess County, N.Y.)
4
West Virginia
4
Adams National Historical Park (Quincy, Mass.)
3
Arizona
3
Cape Hatteras National Seashore (N.C.)
3
Cape Lookout National Seashore (N.C.)
3
Coltsville National Historical Park (Hartford, Conn.)
3
Fredericksburg
3
Fredericksburg and Spotsylvania National Military Park (Va.)
3
Georgia
3
Golden
3
Harpers Ferry
3
Harpers Ferry National Historical Park
3
Hatteras, Cape
3
India
3
more ...