Region
Pittsburgh
Pennsylvania
275
Pittsburgh (Pa.)
92
United States
30
Allegheny Co
16
Allegheny County (Pa.)
16
Penn
10
Allegheny
9
Allegheny County
8
Pennsylvanie
7
Philadelphia
7
New Jersey
4
North Side
4
North Side (Pittsburgh, Pa.)
4
Ohio River
4
Allegheny (Pittsburgh, Pa.)
3
Allegheny River (Pa. and N.Y.)
3
Chicago
3
Chicago (Ill.)
3
Illinois
3
Monongahela River (W. Va. and Pa.)
3
Ohio
3
Baltimore
2
Berks County (Pa.)
2
Canada
2
États-Unis
2
Mahoning County
2
Mahoning County (Ohio)
2
Maryland
2
Park Ridge
2
Park Ridge (Ill.)
2
Perth Amboy
2
Perth Amboy (N.J.)
2
Philadelphia (Pa.)
2
Point State Park (Pittsburgh, Pa.)
2
Reading
2
Reading (Pa.)
2
Youngstown
2
Youngstown (Ohio)
2
20th century
1
Allegheny City
1
Allegheny, Pennsylvania
1
Apollo
1
Apollo (Pa.)
1
Camp High Point Park (N.J.)
1
Congregational
1
Cumberland County (Pa.)
1
Europe, Eastern
1
Fort Duquesne
1
Fort Duquesne (Pa.)
1
more ...