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Subject
- Buildings10
- Donaupark (Vienna, Austria)8
- International Garden Show8
- Parks8
- Trees8
- Streets6
- Sidewalks5
- Air travel4
- Cities & towns4
- Bridges3
- Flags3
- Pedestrians3
- Signs (Notices)3
- Towers3
- Walkways3
- Österreichische Luftverkehrs-Aktiengesellschaft3
- Accidents2
- Architectural decorations & ornaments2
- Automobile breakdowns2
- Automobiles2