Displaying results 1 of 20 - 256
| Date Sort descending | Image | Innovation | City | State | Country |
|---|---|---|---|---|---|
|
Waterford (Union) Bridge (Replaced in 1909) | Troy | NY | ||
| 109-110 | 
|
Acquedotto Traiano-Paolo | Rome | RI | Italy |
| 1200 - 1534 | 
|
Tipon | Tipon | Peru | |
| 1460 | 
|
Machu Picchu | Peru | ||
| 1519 | 
|
El Camino Real - The Royal Road | Mexico City to Santa Fe | NM | USA |
| 1672-1695 | 
|
Castillo de San Marcos | St. Augustine | FL | USA |
| 1682 | 
|
City Plan of Philadelphia | Philadelphia | PA | USA |
| 1697 | 
|
Frankford Avenue Bridge | Philadelphia | PA | USA |
| 16th Century | 
|
El Camino Real (The Royal Road) Eastern Branch | San Antonio | TX | Mexico |
| 1718-1744 | 
|
Acequias of San Antonio | San Antonio | TX | USA |
| 1726 - 1738 | 
|
Acueducto de Queretaro | Santiago de Querétaro | Querétaro | Mexico |
| 1728-1821 | 
|
Royal Colonial Boundary of 1665 | Middlesboro | KY | USA |
| 1733 | 
|
City Plan of Savannah | Savannah | GA | USA |
| 1747 | 
|
Ecole Nationale des Ponts et Cheussees | Paris | Ile-de-France | France |
| 1761 | 
|
Bethlehem Waterworks | Bethlehem | PA | USA |
| 1761 | 
|
Sewall's Bridge | York | ME | USA |
| 1764 | 
|
Choate Bridge | Ipswich | MA | USA |
| 1767 | 
|
Mason-Dixon Line | USA | ||
| 1768-1790 | 
|
Forth & Clyde Canal and Union Canal | Glasgow | UK | |
| 1775 | 
|
King's Road | New Smyrna | FL | USA |
