Skyscrapers are very high off the ground, and unfortunately for the construction workers who build them, that means they have to get pretty high off the ground too. For a normal person, it's enough to make your eyes water and your feet go wobbly. But to these workers laying steel with their sacks of steel, it's no big deal. 

The iconic photo ‘Lunch Atop a Skyscraper’ shows a group of workers sitting on a beam during the construction of the RCA building in 1932. The workers are not strapped in for the photo, and although it was an intentional publicity stunt, conditions for workers back then weren't always safe. Nowadays, most workers are strapped in tightly when faced with a fall of thirty stories, but that doesn't mean the views are any less spectacular.

Check out these vertigo-inducing pics of workers that make us want to go lie down.