Other
Alexandria
1
Alexandria (Pa.)
1
Allegheny (Pa.)
1
Allegheny Avenue, 2100 Blk. (Philadelphia, Pa.)
1
Allegheny Portage Railroad National Historic Site (Pa.)
1
Altoona
2
Altoona Region
1
Amérique du Sud
1
Andes
1
Argentina
1
Atlantic City (N.J.)
1
Atlantic States
1
Australia
1
Baltimore
9
Baltimore (Md.)
5
Baltimore Metropolitan Area
3
Baltimore Region
3
Blair County
2
Blair County (Pa.)
1
Bolivia
1
Boston (Mass.)
2
Boyertown
1
Brazil
2
Broad Street (Philadelphia, Pa.)
1
Bucks County
2
Bucks County (Pa.)
1
Camp Hill (Pa.)
1
Canada
13
Canal Zone
1
Carbon County
1
Carbondale (Pa.)
1
Chesapeake and Ohio Canal (Md. and Washington, D.C.)
1
Chest
1
Chester (Pa.)
5
Chester County
2
Chester County (Pa.)
1
Chile
1
Colorado
1
Confederate States of America
3
Connecticut
2
Dauphin County
1
Dauphin County (Pa.)
1
Delaware
9
Delaware County
2
Delaware County (Pa.)
4
Delaware River
2
Delaware River Valley (N.Y.-Del. and N.J.)
1
Delaware and Hudson Canal (N.Y. and Pa.)
1
Delaware and Raritan Canal (N.J.)
1
Delmarva Peninsula
1
more ...