- Martin Tower, the former headquarters of Bethlehem Steel, was imploded in Bethlehem, Pennsylvania on Sunday.
- Bethlehem Steel was once America's second-largest steelmaker, providing ships and armaments to the US military during World War II and helping to build the Empire State Building and Golden Gate Bridge.
- The company went out of business in 2001, and its former headquarters had stood vacant since then.
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Martin Tower, the former headquarters of Bethlehem Steel, was imploded on Sunday.
The 21-story tower was the tallest in Bethlehem, Pennsylvania, and opened at the height of its company's success in 1972. At that point in time, Bethlehem Steel was the nation's second largest steelmaker and employed more than 120,000 people.
But ever since the company went bankrupt in 2001, the tower had been vacant. The new owners planned to renovate before ultimately deciding to tear the whole thing down and start from scratch.
Continue to see pictures and video of the implosion.