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What new can possibly be said about a place as old as time? After all, Arizona's Grand Canyon has been the object of hundreds of books, thousands of photos and millions of awe-inspired gasps. Historical accounts report visitors dropping to their knees in wonder upon eyeing the monolithic chasm. It is at once an icon, a metaphor and a cliche, capable of warping perspectives and sharpening imagination. Witness its selection as the eighth New Wonder of the World by voters in a USA TODAY/Good Morning America poll, edging out, in order, the Panama Canal; the Great Wall of China; Machu Picchu, Peru; the Saturn V rocket; the Taj Mahal, India; Victoria Falls, Zambia/Zimbabwe; and Venice, Italy. A panel of experts earlier this month named seven new global wonders.