CHICAGO, IL - CIRCA MARCH, 2016: the TILT platform at John Hancock Center's observatory. The John Hancock Center is a supertall skyscraper at 875 Nort Stock Photo - Alamy
Tilt!' at the John Hancock Center -- Chicago Tribune
Experience the Magnificent John Hancock Tower in Chicago
John Hancock Center - Wikipedia
High Anxiety: Lean Out A Window 94 Floors Above Chicago