| … |
Saint Anthony Falls Dam |
| … |
Saint Anthony Falls Dam |
| … |
Granite Breakwater |
| … |
Granite Breakwater |
| … |
Granite Breakwater |
| … |
Granite Breakwater |
| … |
Ferry Slip at Lewes, Delaware |
| … |
Ferry Slip at Lewes, Delaware |
| … |
Melpomene Pumping Station |
| … |
Melpomene Pumping Station |