Scary Side(sky)walk!

This is a proposed skywalk sidewalk at the Grand Canyon in the United States. Yes, I confirmed this is real and is under construction and scheduled to open January 1, 2006 at a cost of $30 million. Can you imagine walking on this? It sticks out over the canyon wall about 70 feet and is 4000 ft above the Colorado River - that is 3/4 of a mile or 1220 meters!

It is built with more than a million pounds of steel beams and includes dampeners that minimize the structure's vibration. In fact, “enabling it to withstand the weight of 71 fully loaded Boeing 747 airplanes (more that 71 million pounds)”, withstand an 8.0 magnitude earthquake 50 miles away, and withstand winds in excess of 100 mph. Of course, it also has a glass bottom and sides - four inches thick - so you can hang out with 120 of your friends 4000 feet above the ground on a piece of glass.

While I would not have a problem with this (I do stupid stuff all the time), I know many people with a fear of heights that would make this an ultimate challenge for them.