Subject
- Flags--United States17
- Tourists15
- War memorials15
- Gunpowder13
- Powder magazines13
- Boats12
- Cemeteries12
- Flagpoles12
- Excavation11
- Flags11
- Warehouses11
- Signs and signboards10
- Truck-mounted cranes10
- Bulldozers9
- Catholic church buildings8
- Indians of North America8
- Navy-yards and naval stations8
- Engineering drawings7
- Parking lots7
- Buildings6