The Ingalls Building, W 4th and Vine Streets, Cincinnati, Ohio, USA.

- Image ID: 2A9CAX1
The Ingalls Building, W 4th and Vine Streets, Cincinnati, Ohio, USA.
Ian Dagnall / Alamy Stock Photo
Image ID: 2A9CAX1
The Ingalls Building, built in 1903, was the world's first reinforced concrete skyscraper.
Location: Cincinnati, Ohio, USA