Displaying results 201 of 220 - 256
| Date | Image | Innovation | City | State | Country Sort descending |
|---|---|---|---|---|---|
| 1878 | 
|
Bridges of Keeseville | Keeseville | NY | USA |
| 1807 | 
|
Portland Observatory | Portland | ME | USA |
| 1937 | 
|
San Francisco - Oakland Bay Bridge | Oakland | CA | USA |
| 1855-1876 | 
|
Hoosac Tunnel | North Adams | MA | USA |
| 1940s | 
|
Tacoma Narrows Bridges | Tacoma | WA | USA |
| 1926-1929 | 
|
Atlantic City Convention Hall | Atlantic City | NJ | USA |
| 1937 | 
|
Golden Gate Bridge | Mill Valley | CA | USA |
| 1919 | 
|
Milwaukee Metropolitan Sewage Treatment Plant | Milwaukee | WI | USA |
| 1893 | 
|
First Concrete Pavement | Bellefontaine | OH | USA |
| 1906 | 
|
Marshall Building | Milwaukee | WI | USA |
| 1848 | 
|
Starrucca Viaduct | Lanesboro | PA | USA |
| 1929-1941 | 
|
San Antonio River Walk & Flood Control System | San Antonio | TX | USA |
| 1862 | 
|
Bridgeport Covered Bridge | Penn Valley | CA | USA |
| 1817 | 
|
Cranetown Triangulation Site | Essex County | NJ | USA |
| 1936 | 
|
Norris Dam | Knoxville | TN | USA |
| 1903 | 
|
Williamsburg Bridge | Brooklyn | NY | USA |
| 1848 | 
|
Roebling's Delaware Aqueduct | Minisink Ford | NY | USA |
| 1916 | 
|
Elephant Butte Dam | Truth or Consequences | NM | USA |
| 1863-1869 | 
|
Central Pacific Railroad | Ogden | UT | USA |
| 1905 | 
|
Cedar Falls Water Supply | Seattle | WA | USA |
