Move over Grand Canyon, the new Glacier Skywalk in Alberta, Canada is the latest gravity-defying structure to take advantage of abundant tourists and sky-high views. Extending 114 feet off the slide of a cliff about two hours from Banff, the $21 million glass-floored walkway took five years to design and two years to construct. After opening last week, the Glacier Skywalk is now terrifying acrophobes daily with its 920-foot-drop, all for only $24.95 per person. Of course, not everyone is thrilled with the newest wilderness tourist hot spot. Environmentalists and residents of the nearby town of Jasper fear the Glacier Skywalk's potential ecological impact, particularly to mountain goats. Then again, why should mountain goats get all the best views?