Sixteen thousand tons of Bethlehem Steel is due to collapse in a matter of seconds as a demolition crew imploded Martin Tower, the defunct steelmaker's former world headquarters.
Crowds are expected on Sunday to watch the demolition of the area's tallest building, a 21-story monolith that opened at the height of Bethlehem Steel's power and profitability. America's second-largest steelmaker went out of business in 2003.
Explosives will take out Martin Tower's steel supports and crumple the 47-year-old building, which has earned a spot on the National Register of Historic Places despite its relatively young age.
Martin Tower had been vacant for a dozen years. Its owners are redeveloping the site into a mix of medical offices, stores and apartments.
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