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Subject
- Abandoned buildings2
- Abiathar Peak (Wyo.)1
- Acropolis (Athens, Greece)1
- Agora (Athens, Greece)3
- Agricultural facilities2
- Agriculture1
- Ailsa Mellon Bruce collection1
- Air France3
- Air travel9
- Aircraft2
- Alamo Square (San Francisco, Calif.)1
- Albergo Excelsior (Florence, Italy)1
- Alcatraz Island (Calif.)7
- Alps, Austrian (Austria)2
- Alps, Bavarian (Germany)1
- Alps, Swiss (Switzerland)3
- Amphitheaters1
- Angel Island (Calif.)9
- Animal housing2
- Animals1