Synopsis

For two decades, the Sears Tower stood as the world's tallest structure. Completed in 1973, this soaring edifice of one hundred and ten stories rises nearly half a kilometer into the sky. Remarkably, it retains the distinction of possessing the highest antenna on Earth. John Zils, the structural engineer and designer behind this monumental creation, offers insights into its construction. Join him for an exclusive glimpse into the essential systems and controls that keep the building functioning