Glad you posted that - I was going to. I went across that sucker in about 1968. IIRC it sways and you can look through the boards down to the Colorado. Crazy and well worth it.
Here’s a video of the Royal Gorge bridge. They apparently still drive over this thing. When I was a kid, there was a line of cars that went over it - insane.
http://www.youtube.com/watch?v=fycJsImDMNw