rusting abandoned steel mill, blast furnaces and smokestacks atop a concrete wall, set against a brilliant blue sky

abandoned architecture aspect atop blast blue brick brilliant complex concrete copy corroded day daylight decaying derelict furnace furnaces horizontal industrial industry landscape light lighting manufacturing mill natural nobody old outdoors outside paint pennsylvania people pipe pittsburgh plant rust rusted rusting rusty set sky smokestacks space stacks steel structure sunny swissvale text tube wall weathered