» What's next that will change the world?
What's next that will change the world?
When steel wasn't just for cutlery anymore...
Photo taken @ St. Louis on 21 October 2018 (© sniggie / Flickr)
Related tags : missouri
, st. louis
, gateway arch
, national historic landmark
, national register of historic places
, gateway arch national park
, bessemer process
, cheap steel
, mass production of steel