Displaying results 61 of 80 - 256
Date Image Innovation City State Country
1924-1921 River des Peres Sewage & Drainage Works River des Peres Sewage & Drainage Works St. Louis MO USA
1900 Chicago Sanitary and Ship Canal Reversal of the Chicago River Chicago IL USA
1824 Russell Sage Laboratory Rensselaer Polytechnic Institute Troy NY USA
1943 Red Hill Underground Fuel Storage Facility Red Hill Underground Fuel Storage Facility Aie HI USA
1909 Queensboro Bridge Queensboro Bridge Long Island City NY USA
1917 Quebec Bridge Quebec Bridge Quebec City Quebec Canada
750-1180 Prehistoric Mesa Verde Reservoirs Prehistoric Mesa Verde Reservoirs Montezuma County CO USA
1888 Poughkeepsie-Highland Bridge Poughkeepsie-Highland Bridge Poughkeepsie NY USA
1799 Potowmack Canal and Locks Potowmack Canal and Locks Fairfax County VA USA
1807 Portland Observatory Portland Observatory Portland ME USA
1787 Portland Head Light Portland Head Light Cape Elizabeth ME USA
1877 Ponte Maria Pia Bridge Ponte Maria Pia Bridge Oporto Norte Portugal
1785 Point of Beginning, U.S. Public Lands Point of Beginning, U.S. Public Lands East Liverpool OH USA
1801 Philadelphia Municipal Water Supply Philadelphia Municipal Water Supply Philadelphia PA USA
1901 Philadelphia City Hall Philadelphia City Hall Philadelphia PA USA
1940 Pennsylvania Turnpike (Old Section) Pennsylvania Turnpike (Old Section) Harrisburg PA USA
1878 Pelton Impulse Water Wheel Pelton Impulse Water Wheel Camptonville CA USA
1900 Peavey-Haglin Concrete Grain Elevator Peavey-Haglin Concrete Grain Elevator St. Louis Park MN USA
1914 Panama Canal Panama Canal Panama
1850-1857 Old Wisla Bridge Old Wisla Bridge Tczew Poland

We hope you enjoyed this essay.

Please support America's only magazine of the history of engineering and innovation, and the volunteers that sustain it with a donation to Invention & Technology.

Donate

Help us save
Stay informed - subscribe to our newsletter.
The subscriber's email address.