Jacqueline Larma / AP

A man uses a phone to record Martin Tower, former world headquarters of Bethlehem Steel, before it implodes Sunday, May 19, 2019, in Bethlehem, Pa. Crowds gathered 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 but had stood vacant for a dozen years after America's second-largest steelmaker went out of business. (AP Photo/Jacqueline Larma)