Subject Region
Pennsylvania
75
Easton (Northampton County)
36
England
34
New Jersey
27
United States
24
Delaware River (N.Y.-Del. and N.J.)
21
New York (State)
20
New York
16
London
14
Phillipsburg
14
Bushkill Creek
12
Lehigh River
10
Great Britain
9
Philadelphia
9
Brooklyn Bridge (New York, N.Y.)
8
Westminster Bridge (London, England)
7
California
6
George Washington Bridge (New York, N.Y.)
6
Massachusetts
6
Thames River
6
Washington (State)
6
Boston
5
China
5
Easton
5
Glendon
5
Scotland
5
East River (N.Y.)
4
Golden Gate Bridge (San Francisco, Calif.)
4
Hudson River (N.Y. and N.J.)
4
Mississippi River
4
San Francisco
4
Tacoma Narrows
4
Ireland
3
Italy
3
Lehigh Canal
3
London (England)
3
Minneapolis (Minn.)
3
Missouri
3
Morris Canal
3
Schuylkill Permanent Bridge (Philadelphia, Pa.)
3
Schuylkill River
3
Spain
3
Susquehanna River
3
Switzerland
3
Tacoma Narrows Bridge (Tacoma, Wash. : 1940)
3
Blackfriars Bridge (London, England)
2
Bristol
2
Colombia
2
Connecticut
2
Edinburgh
2
more ...