It is one of the great natural wonders of the world -- and it will soon to be joined by an engineering marvel.
A fantastic glass bridge arcing 60-feet out over the grand canyon -- giving visitors an unobstructed view 4000-feet straight down.
Sheri Yellowhawk, tribal executive says "That's gonna be a scary view. It's gonna be exciting. It's gonna be a once in a lifetime view.
It may be scarey indeed having nothing more than sheets of glass separating you from eternity.
But the bridge has been engineered to withstand 100-mile per hour winds, magnitude 8 earthquakes -- and hold the weight of 71-jumbo jetliners.
The glass bridge -- officially called the canyon skywalk -- been under construction for months here on the west rim of the grand canyon.