Region
Africa
2
Alabama
8
Alamo (San Antonio, Tex.)
2
Alaska
2
Arizona
4
Arkansas
3
Boston (Mass.)
2
Boulder
1
Boulder (Colo.)
1
California
9
Charleston
1
Charleston (S.C.)
1
Chicago
3
Chicago (Ill.)
2
China
2
Cincinnati (Ohio)
1
Cleveland
2
Cleveland (Ohio)
2
Colorado
1
Comstock Lode (Nev.)
1
Confederate States of America
21
Connecticut
3
Cuyahoga Valley National Park (Ohio)
2
Delaware
3
Erie Canal (N.Y.)
2
Florida
5
Foreign countries
1
Georgia
11
Great Britain
2
Harlem (New York, N.Y.)
1
Hawaii
4
Illinois
12
Indiana
7
Indiana Dunes National Park (Ind.)
1
Iowa
2
Israel
2
Kansas
4
Kent
1
Kent (Ohio)
1
Kentucky
5
Kinlock (Miss.)
1
Las Vegas (Nev.)
1
Lawrenceburg (Tenn.)
1
Legislators
2
Livermore (Me.)
1
Louisiana
5
Maine
4
Malone (N.Y.)
1
Maryland
3
Massachusetts
8
more ...