Exploring Bethlehem's Blast Furnaces

Bethlehem's skyline is still dominated by the old blast furnaces along the river in the heart of the steel plant. These wonders of technology were the beating heart of steel-making, since they were never off line for nearly 100 years. Only when the hot end was shut down in November of 1995 did "Blast Furnace Row" grow quiet. Join Mark for a quick tour and lesson about these iconic structures...