CHICAGO (WLS) -- Four thousand people put on their climbing shoes on Sunday and scaled 94 floors as part of the "Hustle up the Hancock."
The annual charity event at the John Hancock Building benefits the Respiratory Health Association.
The event raised more than $1 million to fight lung disease and help promote healthy lungs.
U.S. Sen. Mark Kirk, R-Illinois, also participated in the hustle.
'Hustle up the Hancock' raises money to fight lung disease