Subjects: des
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- Railroads -- Canada, Western -- Design and construction -- Fiction
- Railroads -- Design and construction
- Railroads -- Design and construction -- Fiction
- Railroad stations -- Design and construction
- Railroads -- United States -- Design and construction -- Fiction
- Railroad tunnels -- Design and construction
- Red Sea Hills (Egypt and Sudan) -- Description and travel
- Reinforced concrete -- Design and construction
- Renard Island (Alaska) -- Description and travel
- Repton (England) -- Description and travel
- Retaining walls -- Design and construction
- Réunion -- Description and travel -- Early works to 1800
- Rhineland (Germany) -- Description and travel -- Juvenile literature
- Rhine River -- Description and travel
- Rhine River Valley -- Description and travel
- Rhodesia -- Description and travel
- Richmond (Va.) -- Description and travel
- Rio de Janeiro (Brazil) -- Description and travel
- Rio Grande Valley (Colo.-Mexico and Tex.) -- Description and travel
- Río Negro (Argentina) -- Description and travel
- Riviera (France) -- Description and travel
- Riviera (Italy) -- Description and travel
- Roads -- United States -- Design and construction
- Rocky Mountains -- Description and travel
- Rocky Mountains -- Description and travel -- Juvenile fiction