Lost during 1940s
Green River Ordnance Plant
(Lee County, Illinois)Army ammunition plant 1942-1945, various bunkers & buildings still in use by private companies
Riddlesburg Coke Ovens
(Bedford County, Pennsylvania)48 brick, beehive coke ovens were built in 1912 to aid in iron-making at the Keystone Foundry and Greenwood Furnace.
(Tama County, Iowa)A quaint, middle-of-the-intersection traffic light