Topic
- Signs and signboards 36
- Photography of interiors 35
- Storefronts 35
- Dwellings 34
- Railroad stations 34
- Barns 32
- Church buildings 30
- Iron and steel bridges 25
- Advertising 24
- Railroad bridges 23
- Silos 23
- Photography, Close-up 22
- Sheet-metal, Corrugated 19
- Abandoned farms 18
- Country life 17
- Railroad cars 16
- Roads 16
- Concrete bridges 15
- Brick walls 14
- Bridge railings 14