We had blogged this back when it was just a concept, but now it's getting close. The structure has become, of course, the "Skywalk" (could've predicted that one), but not everyone's happy about it.
An engineering marvel or a colossal eyesore, depending on who is describing it, the horseshoe-shaped glass walkway will jut out 70 feet beyond the canyon's edge on the Hualapai Indian Reservation just west of Grand Canyon Village. Buttressed by 1 million pounds of steel and supporting 90 tons of tempered glass, the see-through deck will give visitors a breathtaking view of the canyon.
(Thanks to TorTor for the link.)