| Creators Name |
|---|
| Richardson, Henry Hobson [14] |
| Rickard, Tex [1] |
| Rietveld, Gerrit Thomas [1] |
| Rodia, Simon [34] |
| Roebling, John Augustus [1] |
| Roebling, Washington Augustus [1] |
| Rogers, William Barton [3] |
| Rous, Walter [2] |
| RTKL Associates [5] |
| Rudolph, Paul [2] |
