S1 E3 | Glass Half Shattered

Glass: one of the most versatile materials in the construction world; it's both practical and beautiful, but when it fails it's not all it's cracked up to be; excavators: when what goes up must come down, these daring destroyers are the machines to get it done; Atlanta's Georgia Dome dropped like a stone, but in Detroit, the Pontiac Silverdome roof fell, but the building didn't; two cranes, fifty tons of steel, the pesky laws of gravity and one giant hole — what could go wrong? Everything.