Want to know what it would be like to work at great heights that involve you needing to wear a harness to keep you from falling to your death?

In Chicago, the John Hancock Center's west antenna is being removed and the men removing it are also filming their progress.

But beware that, if you're afraid of heights, this video may give you butterflies in your stomach since John Hancock Center is 1,127 feet high and its 1,500 feet up atop the west antenna.

Source: Free Beer & Hot Wings