4 Empire State Buildings Would Fit in the Grand Canyon | How the Earth Was Made (S2) | History

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The Grand Canyon, one of America's most spectacular natural wonders, a canyon 18 miles across at its widest point, 277 miles long, and more than a mile deep. It is so vast that it can even be seen from space. Although Hells Canyon in Idaho is almost half a mile deeper and Australia's Capertee Valley is nearly a mile wider, the Grand Canyon remains ... Read More