Skip to main content

Displaying results 121 of 140 - 256
Date Image Innovation Sort ascending City State Country
1775 King's Road King's Road New Smyrna FL USA
1913 Keokuk Hydro-Power System Keokuk Hydro-Power System Keokuk IA USA
1944 Kentucky Dam Kentucky Dam Grand River KY USA
1936 Kavanagh Building Kavanagh Building Buenos Aires Argentina
1915 Kansas City Park and Boulevard System Kansas City Park and Boulevard System Kansas City MI USA
1871 Kamehameha V Post Office Kamehameha V Post Office Honolulu HI USA
1869 Joining of the Rails - Transcontinental Railroad Joining of the Rails - Transcontinental Railroad Promontory UT USA
1866 John A. Roebling Bridge John A. Roebling Bridge Cincinnati OH USA
1779 Ironbridge Ironbridge Coalbrookdale-Ironbridge UK
1859 Iron Building of the U.S. Army Arsenal Iron Building of the U.S. Army Arsenal Watervliet NY USA
1855 International Boundary Marker #1 International Boundary Marker #1 El Paso TX USA
1903 Ingalls Building Ingalls Building Cincinnati OH USA
BC 100 Ifugao Rice Terraces Ifugao Rice Terraces Bananue Philippines
1919 Hydraulics Laboratory at the University of Iowa Hydraulics Laboratory at the University of Iowa Iowa City IA USA
1824-1836 Hydraulic-Inclined Plane System of the Morris Canal Hydraulic-Inclined Plane System of the Morris Canal Phillipsburg to Newark Bay NJ USA
1796 Hwaseong Fortress Hwaseong Fortress Suwon Gyeonggi-do South Korea
1935 Huey Long Bridge Huey P. Long Bridge Bridge City, LA 70094 LA USA
1908 Hudson and Manhattan Railroad Tunnel Hudson and Manhattan Railroad Tunnel New York City to Hoboken NY USA
1837 Houston Ship Channel Houston Ship Channel Houston TX USA
1847-1854 Horseshoe Curve Horseshoe Curve Altoona PA USA

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

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