In 1973, the Aon Center became the tallest marble-clad building in the world. Years later, Chicago's extreme weather would turn its beautiful exterior into a death-trap.
Corina Kwami
Self (Civil Engineer)
Simon Foster
Self (Physicist)
Tom Gorham
Self (Narrator)
Greg Szulgit
Self (Bioengineer)
Shini Somara
Self (Mechanical Engineer)