Displaying results 81 of 100 - 256
Date Image Innovation City State Country
1813 United States Military Academy United States Military Academy West Point NY USA
1894 Bunker Hill Covered Bridge Bunker Hill Covered Bridge Catawba County NC USA
1878 keeseville Bridges of Keeseville Keeseville NY USA
1893 First Concrete Pavement First Concrete Pavement Bellefontaine OH USA
1906 Marshall Building Marshall Building Milwaukee WI USA
1917 Lake Washington Ship Canal & Hiram M. Chittenden Locks Lake Washington Ship Canal & Hiram M. Chittenden Locks Zanesville WA USA
1926-1929 Atlantic City Convention Hall Atlantic City Convention Hall Atlantic City NJ USA
1937 Golden Gate Bridge Golden Gate Bridge Mill Valley CA USA
1928 Newark Airport Newark Airport Newark NJ USA
1930 White River Concrete Arch Bridge White River Concrete Arch Bridge Cotter AR USA
1848 Delaware Aqueduct of the Delaware & Hudson Canal Roebling's Delaware Aqueduct Minisink Ford NY USA
1824 Russell Sage Laboratory Rensselaer Polytechnic Institute Troy NY USA
1862 Bridgeport Covered Bridge Bridgeport Covered Bridge Penn Valley CA USA
1817 Cranetown Triangulation Site Cranetown Triangulation Site Essex County NJ USA
1807 Portland Observatory Portland Observatory Portland ME USA
1937 San Francisco - Oakland Bay Bridge Oakland CA USA
1855-1876 Hoosac Tunnel Hoosac Tunnel North Adams MA USA
1915 Flight of Five Locks Lockport NY USA
1916 Elephant Butte Dam Elephant Butte Dam Truth or Consequences NM USA
1919 Milwaukee Metropolitan Sewage Treatment Plant Milwaukee Metropolitan Sewage Treatment Plant Milwaukee WI USA

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