Region
Pennsylvania
289
Pittsburgh
280
Pittsburgh (Pa.)
114
United States
38
Allegheny County (Pa.)
18
Allegheny County
10
Pennsylvanie
9
Pittsburgh Region
9
Philadelphia
8
Pittsburgh Region (Pa.)
7
Chicago
5
Chicago (Ill.)
5
Illinois
5
New Jersey
5
Ohio
5
Allegheny
4
États-Unis
4
North Side
4
North Side (Pittsburgh, Pa.)
4
Ohio River
4
Philadelphia (Pa.)
4
Allegheny (Pittsburgh, Pa.)
3
Allegheny Co
3
Allegheny River (Pa. and N.Y.)
3
Fort Duquesne (Pa.)
3
Monongahela River (W. Va. and Pa.)
3
Point State Park (Pittsburgh, Pa.)
3
Baltimore
2
Berks County (Pa.)
2
Canada
2
Cleveland
2
Cleveland (Ohio)
2
Fort Duquesne
2
Fort Duquesne (Penns.)
2
Fort Duquesne (Pittsburgh, Penns.)
2
Mahoning County
2
Mahoning County (Ohio)
2
Maryland
2
Nouvelle-France
2
Park Ridge
2
Park Ridge (Ill.)
2
Perth Amboy
2
Perth Amboy (N.J.)
2
Pittsburgh Metropolitan Area
2
Reading
2
Reading (Pa.)
2
Youngstown
2
Youngstown (Ohio)
2
20th century
1
Allegheny City
1
more ...