Do You Have Enough Courage To Walk Those 'Stairs Of Death' Near Machu Picchu?

Take a look at this video taken in Peru near Machu Picchu, when one of the tourists walked over the 'Stairs of Death' as locals call that stairs.

Going up would be bad enough. We just hope there is a different way to go down. And how about the ones who built this stairway, that would be considered a high risk profession today.