Displaying results 161 of 180 - 256
| Date | Image | Innovation | City | State | Country Sort ascending |
|---|---|---|---|---|---|
| 1848 | 
|
Wheeling Suspension Bridge | Wheeling | WV | USA |
| between 1842 and the | 
|
Baltimore & Ohio Roundhouse & Shop Complex | Martinsburg | WV | USA |
| 1929 | 
|
Goodyear Airdock | Akron | OH | USA |
| 1803 | 
|
Middlesex Canal | Billerica | MA | USA |
| 1930 | 
|
Zion Mt. Carmel Tunnel and Highway | Hurricane | UT | USA |
| 1944 | 
|
Kentucky Dam | Grand River | KY | USA |
| 1935-1937 | 
|
Blue Ridge Parkway | Blue Ridge Mountains | VA | USA |
| 1869 | 
|
Joining of the Rails - Transcontinental Railroad | Promontory | UT | USA |
| 1918 | 
|
Brooks AFB, Old Hangar 9 | San Antonio | TX | USA |
| 1935 | 
|
Hoover Dam | Boulder City | AZ | USA |
| 1794 | 
|
New Castle Ice Harbor | New Castle | DE | USA |
| 1837 | 
|
Muskingum River Navigation System | Zanesville | OH | USA |
| 1805 | 
|
Dismal Swamp Canal | Chesapeake | VA | USA |
| 1835 | 
|
Thomas Viaduct Railroad Bridge | Arbutus | MD | USA |
| 1785 | 
|
Point of Beginning, U.S. Public Lands | East Liverpool | OH | USA |
| 1829 | 
|
Carrollton Viaduct | Baltimore | MD | USA |
| 1882 | 
|
Kinzua Railway Viaduct | McKean County | PA | USA |
| 1682 | 
|
City Plan of Philadelphia | Philadelphia | PA | USA |
| 1942 | 
|
Alaska Highway | Delta Junction | AK | USA |
| 1799 | 
|
Ellicott's Stone | Bucks | AL | USA |
