Rust Forms on an American Dream
A retired steel worker gives a tour at his former work site at the Carrie Furnaces in Rankin, Pennsylvania, USA on April 30, 2016.
The Carrie Furnaces were built in 1881 as part of U.S. Steel's Homestead Works, a sprawling 400-acre complex that spanned both sides of the Monogahela river. They produced up to 1,250 tons of steel a day until 1978 when they were closed.
They are an extremely rare example of pre-WWII ironmaking technology.
The furnaces were designated as a national historic landmark in 2006 and preservation efforts are underway.