You know those light bulbs at the top of those radio and communications towers? Well how many guys does it take to change one? Yeah, some poor sap has to draw the short straw to climb the 1,768 feet up to change it, or rather a pair of guys do. Not sure these guys' hard hats would help them from that far up... I mean, people have been known to not survive falls from just a couple dozen feet up, but what about from a height higher than the top of the Sears tower? All in a day's work I guess! Watch the painstaking ascent from the ground up and get ready for your skin to crawl.