Region
- Albemarle County 1 results
- Albuquerque 1 results
- Alexandria 1 results
- Alexandria (Pa.) 1 results
- Allegheny Mountains 1 results
- Allendale 1 results
- Allentown (Pa.) 1 results
- Altoona 2 results
- Altoona (Pa.) 2 results
- America 5 results
- Américains d'origine norvégienne 1 results
- Américains d'origine norvégienne - Histoire 1 results
- Amérique 2 results
- Amérique du Nord 5 results
- Anau (Turkménistan : Site archéologique) 1 results
- Anau Site 1 results
- Anau Site (Turkmenistan) 1 results
- Appalachian Region 1 results
- Arizona 2 results
- Ashkhabadskai͡a oblastʹ 1 results
- Ashkhabadskai︠a︡ oblastʹ 1 results
- Atlantic City (N.J.) 1 results
- Back Mountain Area (Pa.) 1 results
- Bahamas 2 results
- Bala-Cynwyd 1 results
- Baltimore 2 results
- Baltimore (Md.) 1 results
- Barnegat Light (N.J.) 1 results
- Berks County 2 results
- Berks County (Pa.) 1 results
- Bethlehem 1 results
- Bethlehem (Pa.) 1 results
- Bethlehem Steel Company 1 results
- Bishop Hill 1 results
- Bishop Hill (Ill.) 1 results
- Boston 2 results
- Boston (Mass.) 3 results
- Bradford (Pa.) 1 results
- Bradford County (Pa.) 1 results
- Brandywine Creek (Pa. and Del.) 1 results
- Brandywine Creek Valley (Pa. and Del.) 2 results
- Brandywine Region 1 results
- Brandywine Region (Del.) 1 results
- Bristol (Pa.) 1 results
- Broad Street (Philadelphia, Pa.) 1 results
- Brooklyn (New York, N.Y.) 1 results
- Brooklyn Bridge (New York, N.Y.) 1 results
- Bryn Athyn (Pa.) 1 results
- Buckingham 1 results
- Buckingham (Pa.) 1 results more…